Harris County

State of Texas

Verified Aug. 5, 2026

Harris County is the largest jurisdiction in Texas — 4,731,145 residents. This page is the permit route for that jurisdiction: the fifteen steps from working out who has a say over an address through to permission to operate, the documents this authority publishes, and 62 answers taken from those documents and dated.

Permitting 5 steps · 28 questions

Whether a permit is needed — No solar/PV permit exists in Harris County. There is no PV entry among the 48 permit types, none in the fee schedule's residential section, Q3 Electrical and building permits — Neither — Harris County issues no electrical permit of any kind, separate or combined. Q4 Plan review — 30 business days processing time, stated on the Residential Construction & On-site Sewage System permit page. Q18 Where you file — ePermits — 'Harris County Engineering Department – Permits' at https://epermits.harriscountytx.gov (login, apply, project status, inspection request, Q20

Permit required
No solar/PV permit exists in Harris County. There is no PV entry among the 48 permit types, none in the fee schedule's residential section, and none in the document repository.62% source
What it costs
No residential solar permit fee exists. If a rooftop retrofit were permitted as an improvement, the applicable line in the 2025 fee schedule is 'Accessory Structures – All Other Structures (paving,75% source
Plan review turnaround
30 business days processing time, stated on the Residential Construction & On-site Sewage System permit page. Culvert approval and permitting is separately stated as up to 10 business days.78% source
Key document
fee schedule effective 10/01/2025 (PDF, extracted with pdftotext -layout) cited by 4 open the document
  1. Confirm who has a say over your address

    A city address is usually permitted by the city, not the county — but not always, and some authorities keep building and hand electrical to someone else. Getting this wrong costs the whole submittal, because every requirement below belongs to whoever actually holds jurisdiction. Check the overlays in the same pass: an HOA, a historic district, a windstorm certification or a system-size cap can reshape the design, and all of them are cheaper to find now than after the array is laid out.

    • Is this authority the AHJ for residential solar at this address? No — not for residential rooftop PV. Harris County is not the AHJ for building, electrical or fire review of a one- or two-family dwelling. It is the AHJ for floodplain/development permitting, OSSF, ROW driveways, water wells and pools, and is the fire-code AHJ for commercial/public buildings and 4+ unit multifamily only. 88% · adopted fire code (PDF, extracted with pdftotext -layout)
    • What does this authority permit itself, and what does it delegate? Delegated. Neither building nor electrical for one- and two-family dwellings — residential building code is deferred to the State of Texas (LGC ch. 233 Subchapter F). The county permits itself: floodplain/residential development, OSSF/septic, driveways and culverts in ROW, water wells, pools, fill, platting, site development, signs, and fire-code construction permits for commercial/public/4+ multifamily buildings. 85% · department permit-type index + adopted fire code
    • Is a permit required for a residential rooftop PV system? No solar/PV permit exists in Harris County. There is no PV entry among the 48 permit types, none in the fee schedule's residential section, and none in the document repository. The residual question is whether a rooftop retrofit is caught by the general rule: FPMR §4.01 says 'All development within the unincorporated areas of Harris County without first securing a permit is prohibited', and the county's Residential Permits flyer lists 'Improvements, defined as — Renovations/Additions/Rehabilitations/Repairs to existing structures' as qualifying for a residential permit. Against that: FPMR §2.43 defines 'Structure' as a walled and/or roofed building or a gas/liquid storage tank, which a rooftop array is not; FPMR §2.14 'Development' reaches 'buildings or other structures, Substantial Improvements to existing buildings or structures'; and §2.45 sets Substantial Improvement at ≥50% of the HCAD structure value, which residential PV will not reach. On the county's own definitions a rooftop PV retrofit does not trigger a permit — but the county nowhere says so, and the Residential Group (713-274-3920) is the place to get that in writing. 62% · floodplain management regulations (amended 29 Aug 2023, effective 1 Sep 2023) + residential permits flyer
    • Is there a separate electrical permit, or is it combined? Neither — Harris County issues no electrical permit of any kind, separate or combined. 85% · fee schedule effective 10/01/2025 (PDF, extracted with pdftotext -layout)
    • Is a wind or windstorm certification required? No windstorm certification is required by Harris County for a residential rooftop PV retrofit. The county's only wind provision is in the Floodplain Management Regulations: structures shall be designed to withstand a three-second gust basic wind speed of 120 mph (130 mph for certain enclosed spaces below the flood elevation). Codeword CW 1801-001 (issued 24 Jan 2018) clarifies that those speeds are ASCE 7-05 values and gives a conversion table to ASCE 7-10 (120→152/163, 130→164/174, 140→177/190 mph for Risk Category I-II / III-IV); alternate design provisions may be submitted subject to County Engineer approval. 70% · floodplain regulations codeword CW 1801-001 + Floodplain Management Regulations
    • Is a Specific Use Permit or Council approval ever required? No. There is no Specific Use Permit, use permit, zoning permit or Commissioners Court approval among the county's 48 permit types; unincorporated Harris County regulates development through floodplain, ROW, platting, OSSF and fire code instruments, not land use. 60% · department permit-type index
  2. Check who is allowed to apply

    Several authorities require the electrical permit to be pulled by a licensed electrician, or require the contractor to be registered with them BEFORE applying. Registration is not same-day. This is second on the list rather than fourth because it is the step most likely to stop the job before the drawings matter.

    • Who is allowed to pull the electrical permit? Not applicable — there is no county electrical permit to pull. The county names licensed trades only for septic (a licensed installer must call in the inspection) and for sealed drawings (Texas-licensed engineer or architect). 78% · department permit page
    • Must the contractor be registered with this authority before applying? No general contractor registration is published for residential permits. The only credentials the county requires by name are a licensed septic installer (OSSF) and a Texas-licensed engineer or architect for sealed foundation/drainage drawings. 65% · department permit-type index
  3. Build the submittal package

    Almost everywhere wants a site plan, a one-line or three-line electrical diagram, equipment cut sheets with listings, and a structural attachment detail. Build it against the published checklist rather than the last jurisdiction you worked in — the checklist is what the reviewer marks against.

    • What documents make up a complete submittal? For a residential development permit (the only residential route that exists): a completed residential application with a valid address and HCAD account number; a site plan; for an 'Improvement' a floor plan showing overall dimensions of improved areas, a detailed scope of work, and the construction cost including all labour and materials; and, if in a Special Flood Hazard Area, a foundation drawing sealed by a Texas-licensed engineer or architect, or an Elevation Certificate. There is no PV-specific submittal package. 60% · residential permits flyer (PDF, extracted with pdftotext -layout)
    • How many copies, and in what format? Online through ePermits is the recommended route (register, apply, upload documents, pay, print). Applications may also be dropped off or mailed; walk-ins are taken first come first served and same-day permits are not guaranteed. Faxed or emailed applications are not accepted. Civil development plans are dropped at 1111 Fannin Street, 8th Floor. 58% · residential permits flyer + department FAQ
    • Is a site plan required, and what must it show? Yes for a residential development permit. The site plan must show: a north arrow; all property lines with dimensions; the distance of proposed structures from the nearest property lines; the frontage road clearly labelled; existing and proposed utilities; septic tank, field line and spray area locations if on site; all existing and proposed driveways and culverts with dimensions; the distance between all proposed and existing driveways; easements; and all existing and proposed structures clearly labelled with overall dimensions. A 'Sample Site Plan' exhibit (05/03/2022) is published. 65% · residential permits flyer (PDF, extracted with pdftotext -layout)
    • Is a one-line / three-line diagram required? No. No one-line or three-line diagram is required by any published Harris County residential submittal — the county reviews no electrical work for one- and two-family dwellings. 65% · department document repository
    • Are string and conductor calculations required? No. No string or conductor calculations are required by any published Harris County residential submittal. 62% · department document repository
    • Is a structural PE stamp required, and at what threshold? No PV-specific structural PE threshold is published. The county's only residential structural-stamp trigger is location: if the structure is in a Special Flood Hazard Area (or in the 500-year floodplain with lowest adjacent grade below base flood elevation), foundation and other drawings must be signed and sealed by an engineer or architect licensed to practise in Texas. Outside the SFHA, no sealed structural drawings are required. 70% · department FAQ
  4. Apply and pay

    Most authorities now take the whole application through a portal, and several states cap or constrain what a residential solar permit may cost. Check whether plan check is billed separately before you quote the job.

    • Which permit portal does this authority use? ePermits — 'Harris County Engineering Department – Permits' at https://epermits.harriscountytx.gov (login, apply, project status, inspection request, power release status, pay as a guest, print documents). Version stamp on the live portal is 7.19.0. 95% · permit portal
    • Can the whole application be completed online? Yes for the application itself. The portal's published steps run register → Projects → Apply → locate address on the map → complete application → upload all documents → agree to disclaimer → submit, with payment and document printing online, and inspection requests submitted online. Scheduling is not completed online — after an inspection request a representative contacts the applicant to schedule. 85% · department permit page + live portal
    • What does a residential solar permit cost? No residential solar permit fee exists. If a rooftop retrofit were permitted as an improvement, the applicable line in the 2025 fee schedule is 'Accessory Structures – All Other Structures (paving, storage sheds, pools, Additions and remodels, etc.)' — $35.00 permit fee, $0.00 inspection outside a Special Flood Hazard Area, $73.00 inspection inside one ($35 or $108 total). Separately, the fee schedule's only explicit PV line is a FIRE CODE permit: 'Solar photovoltaic power systems' $240.00 fire code permit fee, plus HCFMO 'Solar Photovoltaic Power Systems' construction inspection $112.50 (1 inspection, $56.25 re-inspection) — and that applies only to buildings within the fire code's scope, i.e. not one- and two-family dwellings. 75% · fee schedule effective 10/01/2025 (PDF, extracted with pdftotext -layout)
    • How is the fee calculated? Flat. Every residential line in the fee schedule is a flat permit fee plus a flat inspection fee (e.g. Residential Single/Multi-Family Dwellings & Manufactured Homes $165; Accessory Structures/Additions/Remodels $35; Fill Material $20; OSSF $113). Valuation-based fees appear only on the commercial side (Fire Code application fee banded by construction cost, development permit at $0.06/sq ft). 88% · fee schedule effective 10/01/2025
    • Is there a separate plan-check fee? No separate residential plan-check fee. The residential section of the fee schedule lists only permit fee, inspection fee, re-inspection fee and revision fee ($73 residential revision). On the commercial side the FAQ states the permit fee 'includes the review as well as final inspection and Certificate of Compliance'. 68% · fee schedule effective 10/01/2025 + department FAQ
  5. Plan review — and start the utility in parallel

    Interconnection is a separate process from the permit and usually the longer pole. Where the utility does not depend on the permit being issued, running both at once is the single biggest saving available on a residential job.

    • What is the stated plan-review turnaround? 30 business days processing time, stated on the Residential Construction & On-site Sewage System permit page. Culvert approval and permitting is separately stated as up to 10 business days. The county does not expedite reviews ('Harris County does not expedite reviews at this time'). 78% · department permit page
    • How long is an issued permit valid before it expires? 180 days to start construction from the date of issue, or the permit is null and void; two six-month extensions may be obtained on written request before expiry; the permit then remains valid for the duration of construction. Separately, a power release sent to CenterPoint is valid for 1 year from the date the permit is issued. An application not acted on is deemed abandoned 180 days after filing. 76% · department FAQ + adopted fire code §105.2.3/§105.3
    • Which utility handles interconnection here? CenterPoint Energy (CenterPoint Energy Houston Electric, the TDU) for most of unincorporated Harris County — named by Harris County itself on its Power Release page, which instructs homeowners to call CenterPoint at 713-207-2222 for an ESI ID. IMPORTANT EXCEPTION: parts of the county are Entergy territory. The county's own residential flyer says to confirm the address with 'Centerpoint at 713/207-2222, or call 281/949-5566 for Entergy administered areas'. Retail energy is sold by a separate Retail Electric Provider; the TDU sets the wires and metering. 88% · county power release page + county residential flyer
    • Where does the utility sit in the sequence? Parallel / no county dependency for a PV retrofit. CenterPoint's Electric Service Standards art. 215 classifies customer generation as parallel or non-parallel; art. 215.1 requires that generation equipment 'may be installed and operated after application for such installation and operation has been received and approved by CenterPoint Energy', art. 215.3 governs parallel operation under CenterPoint specification 007-231-76, and art. 215.4 requires application and approval BEFORE interconnection. Separately, art. 204 notes that 'In localities having electrical ordinances, approval by the city inspecting authority having jurisdiction will be required before the Company is permitted to reconnect the service' — unincorporated Harris County has no electrical ordinance, so no county sign-off stands between the installer and CenterPoint. For NEW CONSTRUCTION service (not PV) the county is in the loop: power releases are sent to CenterPoint automatically at 2am the next business day after the permit is issued, and permanent power requires all inspections passed and no open violations. 80% · utility service standards (PDF, extracted with pdftotext -layout) + county power release page

28 questions answered against Harris County’s own published documents

Q1 Is this authority the AHJ for residential solar at this address? Core Jurisdiction & scope

No — not for residential rooftop PV. Harris County is not the AHJ for building, electrical or fire review of a one- or two-family dwelling. It is the AHJ for floodplain/development permitting, OSSF, ROW driveways, water wells and pools, and is the fire-code AHJ for commercial/public buildings and 4+ unit multifamily only.

Why the confidence is not higherHarris County Fire Code §101.2 Exception 1 excludes one- and two-family dwellings and ≤3-storey townhouses; §102.5 sends the residential code to the State of Texas. The county's own FAQ repeats the scope in plain words. Not 95 because no county document says 'rooftop solar needs no permit' explicitly.

adopted fire code (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q2 What does this authority permit itself, and what does it delegate? Core Jurisdiction & scope

Delegated. Neither building nor electrical for one- and two-family dwellings — residential building code is deferred to the State of Texas (LGC ch. 233 Subchapter F). The county permits itself: floodplain/residential development, OSSF/septic, driveways and culverts in ROW, water wells, pools, fill, platting, site development, signs, and fire-code construction permits for commercial/public/4+ multifamily buildings.

Why the confidence is not higherHarris County Fire Code §101.2 Exc. 1 and §102.5 name LGC 233 Subchapter F as what governs one- and two-family dwellings; the 48-entry Permits A-to-Z list contains no building-alteration or electrical permit. I could not retrieve the text of LGC 233 Subchapter F itself to confirm what it permits the county to do — statutes.capitol.texas.gov is now a JS-only SPA that serves the same 250KB shell for every statute URL, and Justia 403s. So this rests on the county's characterisation of the statute, not the statute.

department permit-type index + adopted fire code checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/Permits-A-to-Z

Q3 Is a permit required for a residential rooftop PV system? Core Jurisdiction & scope

No solar/PV permit exists in Harris County. There is no PV entry among the 48 permit types, none in the fee schedule's residential section, and none in the document repository. The residual question is whether a rooftop retrofit is caught by the general rule: FPMR §4.01 says 'All development within the unincorporated areas of Harris County without first securing a permit is prohibited', and the county's Residential Permits flyer lists 'Improvements, defined as — Renovations/Additions/Rehabilitations/Repairs to existing structures' as qualifying for a residential permit. Against that: FPMR §2.43 defines 'Structure' as a walled and/or roofed building or a gas/liquid storage tank, which a rooftop array is not; FPMR §2.14 'Development' reaches 'buildings or other structures, Substantial Improvements to existing buildings or structures'; and §2.45 sets Substantial Improvement at ≥50% of the HCAD structure value, which residential PV will not reach. On the county's own definitions a rooftop PV retrofit does not trigger a permit — but the county nowhere says so, and the Residential Group (713-274-3920) is the place to get that in writing.

Why the confidence is not higherThis is an inference chained from three of the county's own documents rather than a published answer, and the two halves point different ways. The flyer that carries the 'Improvements' language is stamped 'Ver. Mar 2017' and still gives the old 10555 NW Freeway office address (the office is now 1111 Fannin), so it is stale on its face.

floodplain management regulations (amended 29 Aug 2023, effective 1 Sep 2023) + residential permits flyer checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/New%20Updates/Floodplain_Management_Regulations.pdf

Q4 Is there a separate electrical permit, or is it combined? Core Jurisdiction & scope

Neither — Harris County issues no electrical permit of any kind, separate or combined.

Why the confidence is not higherNo electrical permit appears in the 48-entry Permits A-to-Z index (zero matches for 'electric*'; positive control 'Fire' = 65, fabricated control 'zzqqx' = 0), and the 2025 fee schedule's only 'Electric' lines are Electric Vehicle Charging Stations under the Fire Code section. Not higher because it is a proved absence rather than a positive statement.

fee schedule effective 10/01/2025 (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q5 Who is allowed to pull the electrical permit? Core Who may apply

Not applicable — there is no county electrical permit to pull. The county names licensed trades only for septic (a licensed installer must call in the inspection) and for sealed drawings (Texas-licensed engineer or architect).

Why the confidence is not higherFollows from the proved absence at q4 plus the licensing the residential permit page does name. I did not verify state-level electrician licensing (TDLR) from a state source this run, so nothing here is asserted about who may do the work.

department permit page checked 2026-08-28 https://oce.harriscountytx.gov/Apply-for-Permit/Permits-A-to-Z/Residential-Construction-On-site-Sewage-System-Septic

Q6 Must the contractor be registered with this authority before applying? Core Who may apply

No general contractor registration is published for residential permits. The only credentials the county requires by name are a licensed septic installer (OSSF) and a Texas-licensed engineer or architect for sealed foundation/drainage drawings.

Why the confidence is not higherAbsence proved across the Permits A-to-Z index, the residential permit page and the document repository (zero 'registration' permit type), but the county has no page titled 'contractor registration' either way, so I cannot rule out an internal ePermits account requirement beyond the user registration the portal describes.

department permit-type index checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/Permits-A-to-Z

Q7 Is a homeowner permitted to self-install and self-permit? Who may apply

Nothing published by this authority.

Where we lookedPermits A-to-Z (48 permit types), Residential Construction & OSSF permit page, residential permits flyer, FAQ — none addresses homeowner self-install or self-permitting for electrical or PV work; the county issues no electrical permit so the question has no county-side answer

https://oce.harriscountytx.gov/Services/Development-Services-Permits/Permits-A-to-Z

Q8 What documents make up a complete submittal? Core Submittal package

For a residential development permit (the only residential route that exists): a completed residential application with a valid address and HCAD account number; a site plan; for an 'Improvement' a floor plan showing overall dimensions of improved areas, a detailed scope of work, and the construction cost including all labour and materials; and, if in a Special Flood Hazard Area, a foundation drawing sealed by a Texas-licensed engineer or architect, or an Elevation Certificate. There is no PV-specific submittal package.

Why the confidence is not higherThe only published residential submittal spec is the Residential Permits flyer, which is stamped 'Ver. Mar 2017' and prints the superseded 10555 NW Freeway address. Corroborated in part by the current FAQ (elevation certificate, sealed foundation drawings, site plan) but the itemised list itself is nine years old.

residential permits flyer (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/documents/Publications/Resdiential-Permits-Flyer.pdf

Q9 How many copies, and in what format? Submittal package

Online through ePermits is the recommended route (register, apply, upload documents, pay, print). Applications may also be dropped off or mailed; walk-ins are taken first come first served and same-day permits are not guaranteed. Faxed or emailed applications are not accepted. Civil development plans are dropped at 1111 Fannin Street, 8th Floor.

Why the confidence is not higherThe copy-count/format detail comes from the 2017-vintage flyer whose stated drop-off address is superseded; the 1111 Fannin drop-off is from the current FAQ. No stated number of copies for residential.

residential permits flyer + department FAQ checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/documents/Publications/Resdiential-Permits-Flyer.pdf

Q10 Is a site plan required, and what must it show? Core Submittal package

Yes for a residential development permit. The site plan must show: a north arrow; all property lines with dimensions; the distance of proposed structures from the nearest property lines; the frontage road clearly labelled; existing and proposed utilities; septic tank, field line and spray area locations if on site; all existing and proposed driveways and culverts with dimensions; the distance between all proposed and existing driveways; easements; and all existing and proposed structures clearly labelled with overall dimensions. A 'Sample Site Plan' exhibit (05/03/2022) is published.

Why the confidence is not higherItemised list is from the Mar-2017 flyer; the separately published Sample Site Plan exhibit is dated 2022 and still current in the document repository, which suggests the requirements have not changed, but I did not open the sample to confirm item-by-item.

residential permits flyer (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/documents/Publications/Resdiential-Permits-Flyer.pdf

Q11 Is a one-line / three-line diagram required? Core Drawings & calculations

No. No one-line or three-line diagram is required by any published Harris County residential submittal — the county reviews no electrical work for one- and two-family dwellings.

Why the confidence is not higherProved absence across the residential permit page, the Mar-2017 flyer's itemised submittal list, the document repository (zero 'electrical' matches) and the fee schedule; not a positive statement by the county.

department document repository checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/Documents

Q12 Are string and conductor calculations required? Drawings & calculations

No. No string or conductor calculations are required by any published Harris County residential submittal.

Why the confidence is not higherSame proved absence as q11; the county performs no electrical review for one- and two-family dwellings, so there is nothing to calculate for.

department document repository checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/Documents

Q13 Is a structural PE stamp required, and at what threshold? Core Engineering & stamps

No PV-specific structural PE threshold is published. The county's only residential structural-stamp trigger is location: if the structure is in a Special Flood Hazard Area (or in the 500-year floodplain with lowest adjacent grade below base flood elevation), foundation and other drawings must be signed and sealed by an engineer or architect licensed to practise in Texas. Outside the SFHA, no sealed structural drawings are required.

Why the confidence is not higherStated plainly in the current FAQ and the flyer, but it answers a neighbouring question — foundations for new construction in the floodplain, not roof-load for a PV retrofit. No county document addresses PV structural review at all.

department FAQ checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/FAQ

Q14 Is an electrical PE stamp required, and at what threshold? Engineering & stamps

Nothing published by this authority.

Where we lookedResidential permits flyer submittal list, FAQ, fee schedule, document repository — the only PE/RA stamp requirements published are for foundation, drainage, mitigation and SWQ drawings; no electrical PE stamp threshold appears anywhere

https://oce.harriscountytx.gov/Services/Development-Services-Permits/FAQ

Q15 What does a residential solar permit cost? Core Fees

No residential solar permit fee exists. If a rooftop retrofit were permitted as an improvement, the applicable line in the 2025 fee schedule is 'Accessory Structures – All Other Structures (paving, storage sheds, pools, Additions and remodels, etc.)' — $35.00 permit fee, $0.00 inspection outside a Special Flood Hazard Area, $73.00 inspection inside one ($35 or $108 total). Separately, the fee schedule's only explicit PV line is a FIRE CODE permit: 'Solar photovoltaic power systems' $240.00 fire code permit fee, plus HCFMO 'Solar Photovoltaic Power Systems' construction inspection $112.50 (1 inspection, $56.25 re-inspection) — and that applies only to buildings within the fire code's scope, i.e. not one- and two-family dwellings.

Why the confidence is not higherThe $240/$112.50 PV figures are read straight off the current fee schedule (effective 10/01/2025) which I extracted myself. The $35 figure is an inference — the fee schedule does not name solar in the residential section, so mapping a PV retrofit onto the 'Additions and remodels' line is my reading, not the county's.

fee schedule effective 10/01/2025 (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q16 How is the fee calculated? Core Fees

Flat. Every residential line in the fee schedule is a flat permit fee plus a flat inspection fee (e.g. Residential Single/Multi-Family Dwellings & Manufactured Homes $165; Accessory Structures/Additions/Remodels $35; Fill Material $20; OSSF $113). Valuation-based fees appear only on the commercial side (Fire Code application fee banded by construction cost, development permit at $0.06/sq ft).

Why the confidence is not higherRead directly off the current fee schedule; unambiguous for residential. Not 95 only because solar itself is not a named line.

fee schedule effective 10/01/2025 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q17 Is there a separate plan-check fee? Fees

No separate residential plan-check fee. The residential section of the fee schedule lists only permit fee, inspection fee, re-inspection fee and revision fee ($73 residential revision). On the commercial side the FAQ states the permit fee 'includes the review as well as final inspection and Certificate of Compliance'.

Why the confidence is not higherAbsence proved in the fee schedule's residential table, plus the commercial FAQ statement by analogy. The county does not say in terms that review is free for residential.

fee schedule effective 10/01/2025 + department FAQ checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q18 What is the stated plan-review turnaround? Core Timeline & validity

30 business days processing time, stated on the Residential Construction & On-site Sewage System permit page. Culvert approval and permitting is separately stated as up to 10 business days. The county does not expedite reviews ('Harris County does not expedite reviews at this time').

Why the confidence is not higherThe 30-business-day figure is on the county's current permit page, but that page is the Residential Construction & OSSF application — it is the residential turnaround, not a solar turnaround, because no solar route exists.

department permit page checked 2026-08-28 https://oce.harriscountytx.gov/Apply-for-Permit/Permits-A-to-Z/Residential-Construction-On-site-Sewage-System-Septic

Q19 How long is an issued permit valid before it expires? Timeline & validity

180 days to start construction from the date of issue, or the permit is null and void; two six-month extensions may be obtained on written request before expiry; the permit then remains valid for the duration of construction. Separately, a power release sent to CenterPoint is valid for 1 year from the date the permit is issued. An application not acted on is deemed abandoned 180 days after filing.

Why the confidence is not higherThe 180-day rule appears in the current FAQ (under the Commercial–Enforcement heading) and independently in Harris County Fire Code §105.3 and §105.2.3, which I extracted. It is not stated anywhere specifically for a residential development permit, so I am reading a fire-code/commercial rule across.

department FAQ + adopted fire code §105.2.3/§105.3 checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/FAQ

Q20 Which permit portal does this authority use? Core Portal & process

ePermits — 'Harris County Engineering Department – Permits' at https://epermits.harriscountytx.gov (login, apply, project status, inspection request, power release status, pay as a guest, print documents). Version stamp on the live portal is 7.19.0.

Why the confidence is not higherThe portal itself, live, with its own version stamp; linked from every county permit page.

permit portal checked 2026-08-28 https://epermits.harriscountytx.gov/LOGIN.ASPX

Q21 Can the whole application be completed online? Core Portal & process

Yes for the application itself. The portal's published steps run register → Projects → Apply → locate address on the map → complete application → upload all documents → agree to disclaimer → submit, with payment and document printing online, and inspection requests submitted online. Scheduling is not completed online — after an inspection request a representative contacts the applicant to schedule.

Why the confidence is not higherStep-by-step instructions are published on the county's own permit page and the portal pages are live; the one gap (scheduling by callback) is stated on the portal's own confirmation text.

department permit page + live portal checked 2026-08-28 https://oce.harriscountytx.gov/Apply-for-Permit/Permits-A-to-Z/Residential-Construction-On-site-Sewage-System-Septic

Q22 Which utility handles interconnection here? Core Utility interconnection

CenterPoint Energy (CenterPoint Energy Houston Electric, the TDU) for most of unincorporated Harris County — named by Harris County itself on its Power Release page, which instructs homeowners to call CenterPoint at 713-207-2222 for an ESI ID. IMPORTANT EXCEPTION: parts of the county are Entergy territory. The county's own residential flyer says to confirm the address with 'Centerpoint at 713/207-2222, or call 281/949-5566 for Entergy administered areas'. Retail energy is sold by a separate Retail Electric Provider; the TDU sets the wires and metering.

Why the confidence is not higherBoth utilities are named by Harris County's own documents, not inferred from a ZIP lookup. Held below 95 because the county publishes no territory boundary — the Entergy pocket is acknowledged but not mapped, so the utility must be confirmed per address.

county power release page + county residential flyer checked 2026-08-28 https://epermits.harriscountytx.gov/EXTERNALPOWERRELEASE.ASPX

Q23 Where does the utility sit in the sequence? Core Utility interconnection

Parallel / no county dependency for a PV retrofit. CenterPoint's Electric Service Standards art. 215 classifies customer generation as parallel or non-parallel; art. 215.1 requires that generation equipment 'may be installed and operated after application for such installation and operation has been received and approved by CenterPoint Energy', art. 215.3 governs parallel operation under CenterPoint specification 007-231-76, and art. 215.4 requires application and approval BEFORE interconnection. Separately, art. 204 notes that 'In localities having electrical ordinances, approval by the city inspecting authority having jurisdiction will be required before the Company is permitted to reconnect the service' — unincorporated Harris County has no electrical ordinance, so no county sign-off stands between the installer and CenterPoint. For NEW CONSTRUCTION service (not PV) the county is in the loop: power releases are sent to CenterPoint automatically at 2am the next business day after the permit is issued, and permanent power requires all inspections passed and no open violations.

Why the confidence is not higherRead from CenterPoint's own Service Standards book (last revised 9-22-2025), extracted with pdftotext -layout, and from Harris County's own Power Release page. Not higher because the governing document for the DG process itself — CenterPoint specification 007-231-76 — is named but not published at any URL I could reach, so the sequence detail inside it is unverified.

utility service standards (PDF, extracted with pdftotext -layout) + county power release page checked 2026-08-28 https://assets.centerpointenergy.com/api/public/content/service-standards-service-standards?v=5aaf7c49

Q24 Is a HOA or architectural approval required first? Overlays & special cases

Nothing published by this authority.

Where we lookedFloodplain Management Regulations (2977-line extract), Permits A-to-Z, FAQ, residential permit page — the county requires no HOA or architectural approval as part of any permit and does not mention HOAs. Whether deed restrictions apply is a private-covenant matter; Tex. Prop. Code §202.010 would be the state limit on HOA solar bans but I could not retrieve Texas statute text this run (statutes.capitol.texas.gov now serves a JS-only shell for every statute URL; Justia 403s; texas.public.law slug returned a generic page)

https://oce.harriscountytx.gov/Portals/43/Documents/New%20Updates/Floodplain_Management_Regulations.pdf

Q25 Is there a historic-district review? Overlays & special cases

Nothing published by this authority.

Where we lookedPermits A-to-Z, document repository, Floodplain Management Regulations, Harris County Fire Code — no historic-district review permit type or process exists. Fire Code §102.6 mentions historic buildings only to relieve them of construction provisions, which is not a review requirement

https://oce.harriscountytx.gov/Services/Development-Services-Permits/Permits-A-to-Z

Q26 Is a wind or windstorm certification required? Overlays & special cases

No windstorm certification is required by Harris County for a residential rooftop PV retrofit. The county's only wind provision is in the Floodplain Management Regulations: structures shall be designed to withstand a three-second gust basic wind speed of 120 mph (130 mph for certain enclosed spaces below the flood elevation). Codeword CW 1801-001 (issued 24 Jan 2018) clarifies that those speeds are ASCE 7-05 values and gives a conversion table to ASCE 7-10 (120→152/163, 130→164/174, 140→177/190 mph for Risk Category I-II / III-IV); alternate design provisions may be submitted subject to County Engineer approval.

Why the confidence is not higherThe county-side answer is read straight from two county documents I extracted. What I could NOT establish is the insurance side: whether any part of Harris County sits in the TDI-designated windstorm catastrophe area (which would bring WPI-8 certification into play) — see not_found q26-TDI.

floodplain regulations codeword CW 1801-001 + Floodplain Management Regulations checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/documents/Publications/HCFPMRCodeword-180124.pdf

Q27 Is a Specific Use Permit or Council approval ever required? Overlays & special cases

No. There is no Specific Use Permit, use permit, zoning permit or Commissioners Court approval among the county's 48 permit types; unincorporated Harris County regulates development through floodplain, ROW, platting, OSSF and fire code instruments, not land use.

Why the confidence is not higherA proved absence in the county's own permit index (positive control 'Fire' = 65 hits, fabricated 'zzqqx' = 0), not a positive statement. I did not find a county page that states in terms that the county has no zoning authority.

department permit-type index checked 2026-08-28 https://oce.harriscountytx.gov/Services/Development-Services-Permits/Permits-A-to-Z

Q28 Is there a system-size cap on residential generation? Overlays & special cases

Nothing published by this authority.

Where we lookedFloodplain Management Regulations, Harris County Fire Code, Permits A-to-Z, fee schedule — no system-size cap on residential generation appears in any county instrument. Any cap would sit with CenterPoint's DG specification 007-231-76, which is unpublished

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Lines marked with a percentage were read off this authority’s own published documents. Unmarked guidance is general good practice, not this jurisdiction’s rule — always confirm against the authority before you submit.

Install 5 steps · 20 questions
  1. Build to the code editions actually in force here

    The NEC edition a jurisdiction enforces is often a cycle behind the newest one published, and local amendments sit on top of it. Rapid shutdown, conductor sizing and labelling all change between editions, so the edition in force is the first thing to establish, not the last.

    • Which NEC edition is in force? None adopted by the county for one- and two-family dwellings. Harris County adopts no NEC edition. Its Fire Code references NFPA 70 only incidentally and by currency, not by edition (e.g. §319.11 mobile food vendors 'in compliance with Section 603 and NFPA 70'; §611.2.1 EV disconnects). Residential is deferred to the State of Texas under LGC ch. 233 Subchapter F. CenterPoint's Service Standards likewise refer to 'the current edition of the National Electrical Code' without pinning a year. 75% · adopted fire code (PDF, extracted with pdftotext -layout)
    • Which building code edition is in force? For buildings inside the fire code's scope: the 2021 International Building Code, applied selectively — Harris County Fire Code §102.4 and §105.6 adopt IBC chapters 2-10, 30, 35 and sections 1405, 1505, 1705.15–1705.19, 2403, 2406–2409, 3101–3105, 3110, 3111, 3301, 3302, 3306, 3307, 3309–3314 and Appendix C, with county amendments in Exhibit B ('Changes to International Building Code 2021'). For one- and two-family dwellings: no county building code — deferred to the State of Texas per §102.5. 88% · adopted fire code §102.4, §105.6, Exhibit B
    • Which fire code edition is in force? Harris County Fire Code, based on the 2021 International Fire Code with county amendments. Adopted 14 Sep 2004 (effective 1 Jan 2005), amended 1 Jul 2008, 12 Apr 2012, 16 Dec 2014, 30 Apr 2019, 15 Dec 2020, 9 Sep 2021, 14 Dec 2021, and most recently 12 Nov 2024 — EFFECTIVE 1 JANUARY 2025. Appendices B, C, D, H and I are adopted (§101.2.1). Authority: Tex. Loc. Gov't Code ch. 233 Subchapter C, §233.061 et seq. 95% · adopted fire code, title page revision history
    • Are there local amendments to any of the above? Yes — extensively. Exhibit A is 'Additions, Insertions, Deletion and Changes to International Fire Code 2021 Edition' covering chapters 2, 3, 4, 5, 6, 7, 9, 11, 12, 20, 28, 31, 32, 50 and more; Exhibit B is 'Changes to International Building Code 2021'. Sections 101–114 replace the IFC administrative chapter outright. 95% · adopted fire code, Exhibits A and B
    • What is the installation judged against? For a one- or two-family dwelling: nothing at county level. Harris County performs no electrical or building review or inspection of the installation; the residential standard is the State of Texas's under LGC ch. 233 Subchapter F, and the physical work is judged by an independent third-party inspector engaged by the builder where new-home inspection applies. For buildings within the fire code's scope: the Harris County Fire Code (IFC 2021 as amended) plus the named IBC 2021 sections, enforced by the Fire Marshal with permits issued by the County Engineer. 78% · adopted fire code §101.2, §102.5, §103; residential permits flyer
  2. Fire access, setbacks and pathways

    Ridge setbacks and roof access pathways are fire-service requirements and they constrain the array layout. They are the most common cause of a redesign after the fire department comments on a plan set.

    • What ridge setback and access pathways are required? No local rule. Harris County makes NO addition, insertion, deletion or change to IFC §1204 (solar photovoltaic power systems) anywhere in Exhibit A — its Chapter 12 amendments touch only §1201.1 scope, §1203.1.8, §1203.2/1203.2.20/1203.2.21 (emergency and standby power) and §1207.11.1 (ESS listings). So unamended IFC 2021 §1204 governs ridge setbacks and access pathways where the fire code applies — and it does not apply to one- and two-family dwellings. 80% · adopted fire code, Exhibit A Chapter 12
  3. Rapid shutdown

    Which rapid-shutdown rule applies follows directly from the NEC edition in force, and the initiation device has to be at a location the fire service can reach and identify. This is inspected, and it is labelled.

    Nothing recorded for Harris County on this step yet — 1 question checked and found unpublished. The guidance above is general.

  4. Labels and placards

    The NEC sets a baseline for permanent markings at the service equipment and the disconnecting means. On top of that, an authority may specify its own wording, and the utility may specify more again. Where any of them writes its own text, a generic off-the-shelf label set will not pass — this is the detail most often fixed on a return visit.

    • Does the authority specify placard wording of its own? No — not for photovoltaic systems. Harris County does specify placard wording of its own for other things (fire apparatus access roads: 'NO PARKING FIRE LANE' or 'FIRE LANE NO PARKING'; EV charging: emergency disconnect switches labelled 'EMERGENCY…'; ESS: listed and labelled to UL 9540 and marked 'For use in residential dwelling units'), but it specifies no PV placard wording anywhere. 75% · adopted fire code §503.3, §611.2.4, §1207.11.1
    • Does it specify letter height, colour or material? Not for PV. The county does specify letter height, colour and material elsewhere — fire lane markings: 6-inch minimum painted lines in red traffic paint with 4-inch high white lettering at intervals no greater than 25 feet on both sides; key box doors painted bright red; sprinkler riser and fire pump room access doors labelled with reflective lettering — but nothing of the kind for photovoltaic or service-equipment placards. 72% · adopted fire code §503.3, §506.3, §901.4.67.2
  5. Disconnect, storage and listed equipment

    Where the AC disconnect must sit relative to the meter is usually the utility's rule, not the building department's. Battery storage frequently carries its own permit, its own inspection and its own fire conditions.

    • Must equipment be on a specific approved list? For energy storage systems, yes: Harris County Fire Code §1207.11.1 (amended) requires ESS to be listed and labelled in accordance with UL 9540 and marked 'For use in residential dwelling units', and provides that ESS listed and labelled solely for utility or commercial use shall not be used for residential applications. No approved-list requirement is published for PV modules or inverters. 80% · adopted fire code §1207.11.1
    • Are batteries permitted, and under what conditions? Batteries are permitted, with fire-code conditions where the fire code applies. Harris County Fire Code requires BOTH an operational permit (§105.5.14, stationary and mobile ESS regulated by §1207) and a construction permit (§105.6.5, to install ESS regulated by §1207). Conditions the county has written itself: §1207.11.1 UL 9540 listing marked 'For use in residential dwelling units', with utility/commercial-only-listed ESS barred from residential use; §907.2.23 automatic smoke, thermal-imaging or radiant-energy detection in rooms, areas and walk-in units containing ESS; §903.3.1.1.4 sprinkler design for lithium-ion/lithium-metal battery areas to be based on fire tests witnessed by an approved laboratory with a fire-protection engineer's report; §5001.1 exception 7 removes ESS from the hazardous-materials general provisions. CRUCIALLY, §101.2 Exception 1 puts one- and two-family dwellings outside the whole code, so on the face of the document a home battery on a single-family house is not caught by any of it. 70% · adopted fire code §105.5.14, §105.6.5, §907.2.23, §903.3.1.1.4, §1207.11.1
    • Is there a separate ESS permit or inspection? Yes, where the fire code applies. ESS carries a separate fire code operational permit AND a separate construction permit. Fees: 'Energy storage systems' fire code permit $240.00 (OCE fee schedule, Fire Code Permits table) and HCFMO 'Energy Storage Systems' building/construction permit inspection $150.00 with 1 inspection and $75.00 re-inspection. Not applicable to one- and two-family dwellings under §101.2 Exc. 1. 78% · fee schedule effective 10/01/2025 + adopted fire code
    • Is a ground mount treated as a structure? Probably not a 'structure', but probably still 'development'. Under Floodplain Management Regulations §2.43 a 'Structure' is a walled and/or roofed building or a gas or liquid storage tank principally above ground — a ground-mount array is neither. But §2.14 'Development' reaches 'any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures… paving, excavation', which a ground-mounted array with foundations would engage, and §4.01 prohibits development without a permit. §2.14 excludes residential accessory buildings or structures outside A or V Zones with floor areas under 150 square feet. The county publishes nothing on ground-mount PV specifically. 55% · floodplain management regulations §2.14, §2.43, §4.01

20 questions answered against Harris County’s own published documents

Q29 Which NEC edition is in force? Core Code editions in force

None adopted by the county for one- and two-family dwellings. Harris County adopts no NEC edition. Its Fire Code references NFPA 70 only incidentally and by currency, not by edition (e.g. §319.11 mobile food vendors 'in compliance with Section 603 and NFPA 70'; §611.2.1 EV disconnects). Residential is deferred to the State of Texas under LGC ch. 233 Subchapter F. CenterPoint's Service Standards likewise refer to 'the current edition of the National Electrical Code' without pinning a year.

Why the confidence is not higherProved absence: 'NFPA 70' appears 5 times in the 4,396-line fire code extract and never as an adopting clause; 'National Electrical' appears 0 times; fabricated control 'zzqqx' = 0. I could not read LGC 233 Subchapter F itself (the Texas statutes site now serves a JS-only shell for every statute URL), so what the state edition actually is remains unconfirmed.

adopted fire code (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q30 Which building code edition is in force? Core Code editions in force

For buildings inside the fire code's scope: the 2021 International Building Code, applied selectively — Harris County Fire Code §102.4 and §105.6 adopt IBC chapters 2-10, 30, 35 and sections 1405, 1505, 1705.15–1705.19, 2403, 2406–2409, 3101–3105, 3110, 3111, 3301, 3302, 3306, 3307, 3309–3314 and Appendix C, with county amendments in Exhibit B ('Changes to International Building Code 2021'). For one- and two-family dwellings: no county building code — deferred to the State of Texas per §102.5.

Why the confidence is not higherSection numbers and the 2021 edition are read verbatim from the fire code I extracted. Not 95 because the selective adoption is unusual and the residential half rests on §102.5's one-line deferral rather than a stated code edition.

adopted fire code §102.4, §105.6, Exhibit B checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q31 Which fire code edition is in force? Code editions in force

Harris County Fire Code, based on the 2021 International Fire Code with county amendments. Adopted 14 Sep 2004 (effective 1 Jan 2005), amended 1 Jul 2008, 12 Apr 2012, 16 Dec 2014, 30 Apr 2019, 15 Dec 2020, 9 Sep 2021, 14 Dec 2021, and most recently 12 Nov 2024 — EFFECTIVE 1 JANUARY 2025. Appendices B, C, D, H and I are adopted (§101.2.1). Authority: Tex. Loc. Gov't Code ch. 233 Subchapter C, §233.061 et seq.

Why the confidence is not higherRead from the revision stamp on the face of the code document itself, not from the filename or URL. Worth flagging: the HCFMO home page still carries an alert saying operational permits are required 'under the 2018 International Fire Code, Section 105.6' — that alert is dated 2021 and is stale; the adopted code is IFC 2021.

adopted fire code, title page revision history checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q32 Are there local amendments to any of the above? Core Code editions in force

Yes — extensively. Exhibit A is 'Additions, Insertions, Deletion and Changes to International Fire Code 2021 Edition' covering chapters 2, 3, 4, 5, 6, 7, 9, 11, 12, 20, 28, 31, 32, 50 and more; Exhibit B is 'Changes to International Building Code 2021'. Sections 101–114 replace the IFC administrative chapter outright.

Why the confidence is not higherTable of contents and section-by-section amendment headings read directly from the extracted code.

adopted fire code, Exhibits A and B checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q33 What is the installation judged against? Core Electrical

For a one- or two-family dwelling: nothing at county level. Harris County performs no electrical or building review or inspection of the installation; the residential standard is the State of Texas's under LGC ch. 233 Subchapter F, and the physical work is judged by an independent third-party inspector engaged by the builder where new-home inspection applies. For buildings within the fire code's scope: the Harris County Fire Code (IFC 2021 as amended) plus the named IBC 2021 sections, enforced by the Fire Marshal with permits issued by the County Engineer.

Why the confidence is not higherFollows directly from the scope exception and §102.5, and from the county's own residential process which pushes inspection to third parties. Not higher because it is assembled from three county documents rather than stated in one.

adopted fire code §101.2, §102.5, §103; residential permits flyer checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q34 Is there a local rule on service upgrades or busbar sizing? Electrical

Nothing published by this authority.

Where we lookedHarris County Fire Code Exhibit A and Exhibit B (full 4,396-line extract), fee schedule, document repository — no local rule on service upgrades, busbar sizing or the 120% rule. The county adopts no NEC and reviews no electrical work

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q35 Is a specific mounting system or attachment spacing required? Structural & mounting

Nothing published by this authority.

Where we lookedHarris County Fire Code Exhibits A and B, Floodplain Management Regulations, document repository (Residential Development tag: mobile home affidavit, agricultural affidavit, fill affidavit, drainage samples, driveway sample, dwellings terminology, floodplain notes, foundation plan example, sample site plan, residential flyers) — nothing specifies a mounting system or attachment spacing

https://oce.harriscountytx.gov/Services/Development-Services-Permits/Documents

Q36 What ridge setback and access pathways are required? Core Fire pathways & setbacks

No local rule. Harris County makes NO addition, insertion, deletion or change to IFC §1204 (solar photovoltaic power systems) anywhere in Exhibit A — its Chapter 12 amendments touch only §1201.1 scope, §1203.1.8, §1203.2/1203.2.20/1203.2.21 (emergency and standby power) and §1207.11.1 (ESS listings). So unamended IFC 2021 §1204 governs ridge setbacks and access pathways where the fire code applies — and it does not apply to one- and two-family dwellings.

Why the confidence is not higherA proved absence with controls in the same run: in the 4,396-line extract 'solar' returns 4 hits (§105.6.20 permit, §503.2 exc. 2 access-road exemption for PV generation facilities, §5809.3.3 hydrogen site plan, and a table entry) and none is a setback or pathway amendment; positive control 'label' = 37 hits, fabricated 'zzqqx' = 0. Not higher because absence of an amendment is a negative, and I did not read the ICC model text of §1204 itself (that is ICC's document, not the county's).

adopted fire code, Exhibit A Chapter 12 checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q37 Is rapid shutdown required, and to which NEC edition? Core Rapid shutdown

Nothing published by this authority.

Where we lookedHarris County Fire Code (no NEC edition adopted; 'NFPA 70' appears 5 times, never as an adopting clause; 'rapid shutdown' 0 hits with positive control 'label' = 37 and fabricated control 'zzqqx' = 0), fee schedule, document repository. No county source states a rapid-shutdown requirement or an NEC edition to measure it against; the residential standard is the State's under LGC 233 Subchapter F, which I could not retrieve

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q38 Which placards does this authority require at the service equipment? Core Labels Signage & labelling

Nothing published by this authority.

Where we lookedHarris County Fire Code Exhibit A in full (no PV placard provision; §1204 unamended), fee schedule, document repository, Permits A-to-Z, FAQ. No Harris County placard requirement at service equipment for PV exists. What governs would be the NEC edition in force at state level, which I could not establish

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q39 Does the authority specify placard wording of its own? Core Labels Signage & labelling

No — not for photovoltaic systems. Harris County does specify placard wording of its own for other things (fire apparatus access roads: 'NO PARKING FIRE LANE' or 'FIRE LANE NO PARKING'; EV charging: emergency disconnect switches labelled 'EMERGENCY…'; ESS: listed and labelled to UL 9540 and marked 'For use in residential dwelling units'), but it specifies no PV placard wording anywhere.

Why the confidence is not higherProved absence with controls (see q36); the presence of other county-written label wordings in the same document is what makes the PV silence meaningful rather than an extraction failure.

adopted fire code §503.3, §611.2.4, §1207.11.1 checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q40 Does it specify letter height, colour or material? Core Labels Signage & labelling

Not for PV. The county does specify letter height, colour and material elsewhere — fire lane markings: 6-inch minimum painted lines in red traffic paint with 4-inch high white lettering at intervals no greater than 25 feet on both sides; key box doors painted bright red; sprinkler riser and fire pump room access doors labelled with reflective lettering — but nothing of the kind for photovoltaic or service-equipment placards.

Why the confidence is not higherSame proved absence and same control set as q39. Recorded because the contrast is informative: this authority writes detailed lettering specs when it means to, and wrote none for PV.

adopted fire code §503.3, §506.3, §901.4.67.2 checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q41 Is a site plan / facility map placard required, and what must it show? Core Labels Signage & labelling

Nothing published by this authority.

Where we lookedHarris County Fire Code Exhibit A (IFC §1204 unamended, so no local site-plan/facility-map placard rule), document repository, fee schedule. The only site plan the county requires for PV-adjacent work is the hydrogen mobile fuelling site plan at §5809.3.3, which lists 'solar photovoltaic parking lot canopies' as an item to show — irrelevant to residential rooftop

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q42 Does the UTILITY specify placards beyond the AHJ's? Core Labels Signage & labelling

Nothing published by this authority.

Where we lookedCenterPoint Energy Electric Service Standards (110-page PDF, last revised 9-22-2025), downloaded and extracted with pdftotext -layout: zero matches for 'solar', 'photovoltaic', 'distributed generation', 'placard', 'inverter'; 'label' = 37 and 'disconnect' = 35 as positive controls, 'zzqqx' = 0. THIS ABSENCE IS NOT SAFE: per-page extraction shows roughly a dozen pages (e.g. 31, 41, 71, 81, 101) yield 2-3 characters — they are illustration-only with no text layer, so a placard detail drawn in an illustration would not be found. The governing document is CenterPoint specification 007-231-76, named in Service Standards art. 215.3/215.4 but not published at any URL I could reach; centerpointenergy.com's /distributed-generation-interconnection paths all 404 and the only 'customer generation' page in their sitemap is the INDIANA/SIGECO one (Ind. Code 8-1-40, Rider EDG), which is the wrong utility and would have been a trap

https://assets.centerpointenergy.com/api/public/content/service-standards-service-standards?v=5aaf7c49

Q43 Where must the labels be placed? Core Labels Signage & labelling

Nothing published by this authority.

Where we lookedHarris County Fire Code Exhibit A (no PV label placement rule; §1204 unamended), CenterPoint Service Standards (no PV labelling text — with the image-only-pages caveat at q42), county fee schedule and document repository

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q44 Must equipment be on a specific approved list? Equipment listing

For energy storage systems, yes: Harris County Fire Code §1207.11.1 (amended) requires ESS to be listed and labelled in accordance with UL 9540 and marked 'For use in residential dwelling units', and provides that ESS listed and labelled solely for utility or commercial use shall not be used for residential applications. No approved-list requirement is published for PV modules or inverters.

Why the confidence is not higherVerbatim from the county's own amendment, which I extracted. Confidence is held down by a real tension: this amendment speaks to residential dwelling units, yet §101.2 Exc. 1 removes one- and two-family dwellings from the code's scope entirely — so which residential occupancies it actually bites on is unresolved on the face of the document.

adopted fire code §1207.11.1 checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q45 Are batteries permitted, and under what conditions? Core Battery / ESS

Batteries are permitted, with fire-code conditions where the fire code applies. Harris County Fire Code requires BOTH an operational permit (§105.5.14, stationary and mobile ESS regulated by §1207) and a construction permit (§105.6.5, to install ESS regulated by §1207). Conditions the county has written itself: §1207.11.1 UL 9540 listing marked 'For use in residential dwelling units', with utility/commercial-only-listed ESS barred from residential use; §907.2.23 automatic smoke, thermal-imaging or radiant-energy detection in rooms, areas and walk-in units containing ESS; §903.3.1.1.4 sprinkler design for lithium-ion/lithium-metal battery areas to be based on fire tests witnessed by an approved laboratory with a fire-protection engineer's report; §5001.1 exception 7 removes ESS from the hazardous-materials general provisions. CRUCIALLY, §101.2 Exception 1 puts one- and two-family dwellings outside the whole code, so on the face of the document a home battery on a single-family house is not caught by any of it.

Why the confidence is not higherEvery clause is quoted from the code I extracted, but the scope exception and the residential-marking amendment point in opposite directions and the county publishes no reconciliation. An installer should get the Fire Marshal's position in writing rather than rely on my reading. HCFMO: 713-274-1700, FMOSupport@fmo.hctx.net.

adopted fire code §105.5.14, §105.6.5, §907.2.23, §903.3.1.1.4, §1207.11.1 checked 2026-08-28 https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Q46 Is there a separate ESS permit or inspection? Battery / ESS

Yes, where the fire code applies. ESS carries a separate fire code operational permit AND a separate construction permit. Fees: 'Energy storage systems' fire code permit $240.00 (OCE fee schedule, Fire Code Permits table) and HCFMO 'Energy Storage Systems' building/construction permit inspection $150.00 with 1 inspection and $75.00 re-inspection. Not applicable to one- and two-family dwellings under §101.2 Exc. 1.

Why the confidence is not higherPermit requirement from the code, fee figures from the current fee schedule, both extracted by me. Same scope caveat as q45.

fee schedule effective 10/01/2025 + adopted fire code checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q47 Is a ground mount treated as a structure? Core Ground mount

Probably not a 'structure', but probably still 'development'. Under Floodplain Management Regulations §2.43 a 'Structure' is a walled and/or roofed building or a gas or liquid storage tank principally above ground — a ground-mount array is neither. But §2.14 'Development' reaches 'any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures… paving, excavation', which a ground-mounted array with foundations would engage, and §4.01 prohibits development without a permit. §2.14 excludes residential accessory buildings or structures outside A or V Zones with floor areas under 150 square feet. The county publishes nothing on ground-mount PV specifically.

Why the confidence is not higherThis is my construction of two definitions in the county's regulation applied to a case the regulation never mentions. It is worth recording because the definitions are the county's own and are quoted, but it is not the county's answer and should be confirmed with the Residential Group on 713-274-3920.

floodplain management regulations §2.14, §2.43, §4.01 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/New%20Updates/Floodplain_Management_Regulations.pdf

Q48 Where must the AC disconnect be, relative to the meter? Core Utility equipment

Nothing published by this authority.

Where we lookedCenterPoint Energy Electric Service Standards art. 215 (Customer-Owned Generation Equipment) — it states only that permanently installed standby generators must be on the load side of the meter behind a service-entrance-rated device (art. 215.6) and that no transfer switch may be installed on the CenterPoint side of the meter or between meter and socket jaws (art. 215.5). Neither addresses a PV AC disconnect. The disconnect location for parallel generation sits in specification 007-231-76, which is unpublished; the Service Standards' illustration pages have no text layer (see q42)

https://assets.centerpointenergy.com/api/public/content/service-standards-service-standards?v=5aaf7c49

Lines marked with a percentage were read off this authority’s own published documents. Unmarked guidance is general good practice, not this jurisdiction’s rule — always confirm against the authority before you submit.

Inspection 5 steps · 14 questions
  1. Book it

    Booking is a portal, a phone call or an email depending on the authority, and the notice required is rarely zero. Book before the work is finished rather than after — the lead time, not the work, is usually what sets the date.

    • How is an inspection booked? Portal, with phone as an alternative. Primary route is the ePermits Inspection Request form (enter the permit number, e.g. 2201010001-ABC-001, confirm details, upload any pre-inspection documents, submit). The residential line for inspection requests is 713-274-3924. Septic inspections must be called in by the licensed installer only (713-274-3800). Pre-inspection certificates go by email: POSTPERMDOCS@harriscountytx.gov for Development As-Built, Foundation and Elevation certificates; FMOSUPPORT@harriscountytx.gov for Fire Code As-Built; SWQINSPECT@harriscountytx.gov for Storm Water Quality As-Built. 88% · published inspection process sheet REV 04/2023 (PDF, extracted with pdftotext -layout)
    • How much notice is required? 2-3 business days. 'Allow 2-3 business days for inspection request to be processed and scheduled. An email will follow upon status change of the project to the requestor's listed email account.' The portal repeats this: a representative contacts you within 2-3 business days to schedule. Fire Marshal inspections: allow the assigned inspector 3-5 business days to make contact. Pre-inspection certificates: allow 3-5 business days for review. Septic: at least 24 hours' advance notice, called in by the licensed installer. 88% · published inspection process sheet REV 04/2023 + ePermits inspection request page
    • Are same-day or AM/PM windows offered? No same-day service and no AM/PM windows offered. Inspections are requested through the portal and then scheduled by a representative who contacts the requestor; an email follows on status change. For driveway culverts the applicant must first contact the precinct on the permit to set grade stakes (Pct 1 281-820-5151, Pct 2 281-487-2910, Pct 3 713-857-5199, Pct 4 281-353-8424). 68% · published inspection process sheet REV 04/2023
  2. Know who turns up

    Some authorities inspect their own solar work; some delegate it, and a few do not inspect the PV equipment itself at all. Who is coming determines what they will look at.

    • Does this AHJ perform its own final solar inspection? No. Harris County performs no final solar inspection. Its published residential final site inspection (FNLR) checks exactly four things: Foundation Certificate (meets minimum elevation requirement per Harris County regulation), Drainage (final grade does not impact adjacent properties), Paving (sidewalks, parking lots, curbs, ramps), and Structures. No electrical, no roof, no PV, no labels. For new homes, 'Home Builders, Developers and Contractors MUST obtain independent 3rd party inspections for their homes' and enter them into ePermits. 80% · published inspection process sheet REV 04/2023 + residential permits flyer
    • If delegated, to whom? To independent third-party inspectors engaged by the builder, developer or contractor, whose results the builder enters into ePermits. Harris County names no inspection agency, approved-inspector list, or qualifying criteria. 62% · residential permits flyer (PDF, extracted with pdftotext -layout)
  3. Work the stages in order

    A rough-in or mid-roof inspection, where one is required, has to happen before the work it covers is closed up. Missing a stage means opening something back up, and it is the most expensive kind of correction.

    • Which inspections are required, and in what order? Residential, per the county's published Inspection Process (REV 04/2023): pre-inspection documents first (Development As-Built Certificate, Foundation Certificate, Elevation Certificate — submitted by email, allow 3-5 business days for a status email), then Residential Site final (FNLR) covering Foundation Certificate elevation, Drainage, Paving and Structures. Driveway is a separate three-stage sequence — Residential Driveway (RDW): culvert inspection, preliminary inspection, final inspection, with the precinct contacted to set grade stakes before the culvert inspection. Septic (OSSF) is inspected separately on 24 hours' notice by request of the licensed installer. All required inspections must pass before permanent Power Release is requested. 85% · published inspection process sheet REV 04/2023
    • Is a rough-in or mid-roof inspection required? No. There is no rough-in or mid-roof stage in the county's published residential inspection sequence — the residential site inspection is a single final (FNLR), with only driveway carrying preliminary and final stages. 65% · published inspection process sheet REV 04/2023
  4. Have the paperwork on site

    The approved plan set, the permit, and the equipment listings should be on site and reachable. Inspectors routinely verify that installed equipment matches what was approved, and that the labels are the ones the plan set promised.

    • Is there a published inspection checklist? Yes — 'Inspection Process' (REV 04/2023), a one-page published checklist naming the pre-inspection documents, their submission addresses, and the items checked at Residential Site (FNLR), Commercial Site (FNLC), Driveway (RDW/CDW) and Signs (ETJ/ETJT) inspections. Also published: 'Final Site Inspection Checklist' (12/08/2023, commercial), 'Commercial Sign Checklist' (12/08/2023), 'Junkyard or Automotive Wrecking Salvage Yard Facility Checklist' (12/11/2023), 'Harris County Foundation Certificate' (04/01/2025). There is no PV or electrical checklist. 90% · published inspection process sheet REV 04/2023 + document repository
    • What must be on site at inspection? The permit must be posted — the inspection sheet's first line, in quotes and capitals, is 'INSPECTIONS WILL NOT BE CONDUCTED IF PERMITS ARE NOT POSTED'. Pre-inspection certificates (Development As-Built, Foundation, Elevation, Fire Code As-Built, Storm Water Quality As-Built) must have been submitted by email and reviewed in advance, allowing 3-5 business days. For septic, a valid septic permit and approved septic plans bearing the Permit Office's stamps must be in hand before an inspection can be scheduled. 88% · published inspection process sheet REV 04/2023
    • Does the inspector verify labels and listings? No. Verification of labels and listings is not in the county's published residential inspection scope, which is limited to foundation elevation, drainage, paving and structures. The only listing verification the county writes anywhere is for ESS (UL 9540, §1207.11.1), inside the fire code, which does not reach one- and two-family dwellings. 65% · published inspection process sheet REV 04/2023
  5. Sign-off, and permission to operate

    Passing gives you a final or an equivalent sign-off. That is not the same as permission to operate: PTO comes from the utility, and who tells the utility the inspection passed varies. A system left switched off for weeks is usually waiting on this handover.

    • What is issued on pass? Residential: there is no certificate of occupancy. What passing produces is eligibility for permanent Power Release — the inspection sheet ends 'If all the above inspections pass, Request for a permanent Power Release', and the portal conditions permanent power on no outstanding violations, no open inspections and no unpaid storm water quality inspection fees. Commercial/fire code: a Certificate of Compliance issued by the County Engineer — Fire Code §102.3.1 provides that no building shall be used or occupied until a fire code inspection has been completed as approved and the County Engineer has issued a certificate of compliance. 80% · published inspection process sheet REV 04/2023 + ePermits power release page + fire code §102.3.1
    • Who notifies the utility for PTO? Split, and different for the two cases. FOR NEW-CONSTRUCTION SERVICE the AHJ notifies: Harris County sends temporary and permanent power releases to CenterPoint automatically the next business day after permits are issued ('This power release will be sent AUTOMATICALLY at 2am'), valid for one year from the date the permit is issued; the customer then obtains an ESI ID from CenterPoint (713-207-2222 for homeowners) and orders service through a Retail Electric Provider, which sends the start-service order to CenterPoint. FOR DG INTERCONNECTION / PTO the county has no role at all: under CenterPoint Service Standards art. 215.4, before customer-owned generating equipment may be interconnected, application must be made to and approved by CenterPoint (specification 007-231-76) — so the installer or customer deals with the utility directly. 78% · county power release page + utility service standards art. 215
    • Is there a re-inspection fee? Yes. From the fee schedule effective 10/01/2025 — Residential Single/Multi-Family Dwellings, Manufactured and Tract Homes, and Accessory Structures/Additions/Remodels: $73.00 re-inspection. Fill Material: $64.00. Residential Driveway: $69.00. On-Site Sewage Facility: $90.00. Commercial development inspection: $98.00. Fire Code permits: $100.00 re-inspection ($65 revision on fire protection). HCFMO's own schedule: Solar Photovoltaic Power Systems $56.25, Energy Storage Systems $75.00. NOTE A CONFLICT: the department FAQ states 'The first inspection and first re-inspection fee is included in the original permit fee. Subsequent re-inspection fees are assessed at $260 each' — that $260 does not match any figure in the current fee schedule. 80% · fee schedule effective 10/01/2025 + department FAQ
    • How are corrections issued and cleared? For septic, the county states: 'If the septic system does not pass inspection, a list of deficiencies will be provided. A reinspection fee may be required. This fee must be paid before reinspection can occur.' Generally, an email follows on status change of the project to the requestor's listed email account. For fire code work, §109.2.1 requires the necessary corrections to be made and the work resubmitted to the fire code official for inspection and testing. Violations are handled separately: a violation letter must be abated by REMOVING or PERMITTING the item, via the Residential Group (713-274-3920) for residential property, or the Inspection Group (713-274-3924) to remove. 70% · department permit page + FAQ + adopted fire code §109.2.1

14 questions answered against Harris County’s own published documents

Q49 How is an inspection booked? Core Booking & scheduling

Portal, with phone as an alternative. Primary route is the ePermits Inspection Request form (enter the permit number, e.g. 2201010001-ABC-001, confirm details, upload any pre-inspection documents, submit). The residential line for inspection requests is 713-274-3924. Septic inspections must be called in by the licensed installer only (713-274-3800). Pre-inspection certificates go by email: POSTPERMDOCS@harriscountytx.gov for Development As-Built, Foundation and Elevation certificates; FMOSUPPORT@harriscountytx.gov for Fire Code As-Built; SWQINSPECT@harriscountytx.gov for Storm Water Quality As-Built.

Why the confidence is not higherFrom the county's current published 'Inspection Process' sheet (REV 04/2023) which I extracted, plus the live portal text. Not 95 because the 713-274-3924 phone route comes from the Mar-2017 flyer, though the same number appears in the current FAQ for the Inspection Group.

published inspection process sheet REV 04/2023 (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q50 How much notice is required? Core Booking & scheduling

2-3 business days. 'Allow 2-3 business days for inspection request to be processed and scheduled. An email will follow upon status change of the project to the requestor's listed email account.' The portal repeats this: a representative contacts you within 2-3 business days to schedule. Fire Marshal inspections: allow the assigned inspector 3-5 business days to make contact. Pre-inspection certificates: allow 3-5 business days for review. Septic: at least 24 hours' advance notice, called in by the licensed installer.

Why the confidence is not higherStated in the county's own current inspection process sheet and repeated verbatim on the live portal confirmation. Not 95 because these are turnarounds to being scheduled, not a required notice period before a chosen date.

published inspection process sheet REV 04/2023 + ePermits inspection request page checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q51 Are same-day or AM/PM windows offered? Booking & scheduling

No same-day service and no AM/PM windows offered. Inspections are requested through the portal and then scheduled by a representative who contacts the requestor; an email follows on status change. For driveway culverts the applicant must first contact the precinct on the permit to set grade stakes (Pct 1 281-820-5151, Pct 2 281-487-2910, Pct 3 713-857-5199, Pct 4 281-353-8424).

Why the confidence is not higherA proved absence — no window or same-day language anywhere in the inspection process sheet, the portal or the FAQ — rather than a statement that they are not offered.

published inspection process sheet REV 04/2023 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q52 Does this AHJ perform its own final solar inspection? Core Who inspects

No. Harris County performs no final solar inspection. Its published residential final site inspection (FNLR) checks exactly four things: Foundation Certificate (meets minimum elevation requirement per Harris County regulation), Drainage (final grade does not impact adjacent properties), Paving (sidewalks, parking lots, curbs, ramps), and Structures. No electrical, no roof, no PV, no labels. For new homes, 'Home Builders, Developers and Contractors MUST obtain independent 3rd party inspections for their homes' and enter them into ePermits.

Why the confidence is not higherThe FNLR scope is read verbatim off the county's current inspection process sheet. The third-party requirement comes from the Mar-2017 flyer, which is stale on its addresses — but it is consistent with the fire code's deferral of residential to LGC 233 Subchapter F, and no newer county document contradicts it.

published inspection process sheet REV 04/2023 + residential permits flyer checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q53 If delegated, to whom? Core Who inspects

To independent third-party inspectors engaged by the builder, developer or contractor, whose results the builder enters into ePermits. Harris County names no inspection agency, approved-inspector list, or qualifying criteria.

Why the confidence is not higherThe only county source for this is the Mar-2017 residential flyer, which is stale on its office address; the delegate is described by category, never by name, and there is no published roster to check against.

residential permits flyer (PDF, extracted with pdftotext -layout) checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/documents/Publications/Resdiential-Permits-Flyer.pdf

Q54 Which inspections are required, and in what order? Core Stages & sequence

Residential, per the county's published Inspection Process (REV 04/2023): pre-inspection documents first (Development As-Built Certificate, Foundation Certificate, Elevation Certificate — submitted by email, allow 3-5 business days for a status email), then Residential Site final (FNLR) covering Foundation Certificate elevation, Drainage, Paving and Structures. Driveway is a separate three-stage sequence — Residential Driveway (RDW): culvert inspection, preliminary inspection, final inspection, with the precinct contacted to set grade stakes before the culvert inspection. Septic (OSSF) is inspected separately on 24 hours' notice by request of the licensed installer. All required inspections must pass before permanent Power Release is requested.

Why the confidence is not higherThe stages and their order are printed on the county's own current inspection sheet, which I extracted. Not higher because the sheet does not sequence pre-inspection documents against site inspections explicitly — the ordering is implied by its layout and by the closing line about power release.

published inspection process sheet REV 04/2023 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q55 Is a rough-in or mid-roof inspection required? Stages & sequence

No. There is no rough-in or mid-roof stage in the county's published residential inspection sequence — the residential site inspection is a single final (FNLR), with only driveway carrying preliminary and final stages.

Why the confidence is not higherProved absence in the current inspection process sheet, but this describes the county's own stages only; the third-party inspections a builder must obtain for a new home may include rough-in stages that the county does not publish.

published inspection process sheet REV 04/2023 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q56 Does the inspector verify labels and listings? Core What is checked

No. Verification of labels and listings is not in the county's published residential inspection scope, which is limited to foundation elevation, drainage, paving and structures. The only listing verification the county writes anywhere is for ESS (UL 9540, §1207.11.1), inside the fire code, which does not reach one- and two-family dwellings.

Why the confidence is not higherProved absence in the published inspection scope rather than a statement of practice; I made no contact with an inspector to confirm what happens in the field.

published inspection process sheet REV 04/2023 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q57 Is there a published inspection checklist? Core What is checked

Yes — 'Inspection Process' (REV 04/2023), a one-page published checklist naming the pre-inspection documents, their submission addresses, and the items checked at Residential Site (FNLR), Commercial Site (FNLC), Driveway (RDW/CDW) and Signs (ETJ/ETJT) inspections. Also published: 'Final Site Inspection Checklist' (12/08/2023, commercial), 'Commercial Sign Checklist' (12/08/2023), 'Junkyard or Automotive Wrecking Salvage Yard Facility Checklist' (12/11/2023), 'Harris County Foundation Certificate' (04/01/2025). There is no PV or electrical checklist.

Why the confidence is not higherThe checklists exist and are dated in the county's own document repository, and I opened and extracted the main one. The PV absence is control-tested: 'solar', 'photovoltaic' and 'electrical' each return 0 in the repository listing while 'residential' returns 38 and 'zzqqx' returns 0.

published inspection process sheet REV 04/2023 + document repository checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q58 What must be on site at inspection? Core Documents on site

The permit must be posted — the inspection sheet's first line, in quotes and capitals, is 'INSPECTIONS WILL NOT BE CONDUCTED IF PERMITS ARE NOT POSTED'. Pre-inspection certificates (Development As-Built, Foundation, Elevation, Fire Code As-Built, Storm Water Quality As-Built) must have been submitted by email and reviewed in advance, allowing 3-5 business days. For septic, a valid septic permit and approved septic plans bearing the Permit Office's stamps must be in hand before an inspection can be scheduled.

Why the confidence is not higherRead verbatim off the county's current published inspection sheet and the residential permit page. Not 95 because the sheet lists what must be submitted and posted rather than giving a formal on-site document list.

published inspection process sheet REV 04/2023 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q59 Is there a re-inspection fee? Corrections & re-inspection

Yes. From the fee schedule effective 10/01/2025 — Residential Single/Multi-Family Dwellings, Manufactured and Tract Homes, and Accessory Structures/Additions/Remodels: $73.00 re-inspection. Fill Material: $64.00. Residential Driveway: $69.00. On-Site Sewage Facility: $90.00. Commercial development inspection: $98.00. Fire Code permits: $100.00 re-inspection ($65 revision on fire protection). HCFMO's own schedule: Solar Photovoltaic Power Systems $56.25, Energy Storage Systems $75.00. NOTE A CONFLICT: the department FAQ states 'The first inspection and first re-inspection fee is included in the original permit fee. Subsequent re-inspection fees are assessed at $260 each' — that $260 does not match any figure in the current fee schedule.

Why the confidence is not higherAll figures are read off the current fee schedule which I extracted, but the FAQ's $260 contradicts it and I could not tell from either document which governs or whether the FAQ is simply stale.

fee schedule effective 10/01/2025 + department FAQ checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Permits/Commercial/2025_Permits_Fee_Schedule.pdf

Q60 How are corrections issued and cleared? Corrections & re-inspection

For septic, the county states: 'If the septic system does not pass inspection, a list of deficiencies will be provided. A reinspection fee may be required. This fee must be paid before reinspection can occur.' Generally, an email follows on status change of the project to the requestor's listed email account. For fire code work, §109.2.1 requires the necessary corrections to be made and the work resubmitted to the fire code official for inspection and testing. Violations are handled separately: a violation letter must be abated by REMOVING or PERMITTING the item, via the Residential Group (713-274-3920) for residential property, or the Inspection Group (713-274-3924) to remove.

Why the confidence is not higherEach element is quoted from a county source, but they are three different processes (septic, fire code, enforcement) stitched together — the county publishes no single corrections procedure for a residential permit.

department permit page + FAQ + adopted fire code §109.2.1 checked 2026-08-28 https://oce.harriscountytx.gov/Apply-for-Permit/Permits-A-to-Z/Residential-Construction-On-site-Sewage-System-Septic

Q61 What is issued on pass? Core Final sign-off & PTO

Residential: there is no certificate of occupancy. What passing produces is eligibility for permanent Power Release — the inspection sheet ends 'If all the above inspections pass, Request for a permanent Power Release', and the portal conditions permanent power on no outstanding violations, no open inspections and no unpaid storm water quality inspection fees. Commercial/fire code: a Certificate of Compliance issued by the County Engineer — Fire Code §102.3.1 provides that no building shall be used or occupied until a fire code inspection has been completed as approved and the County Engineer has issued a certificate of compliance.

Why the confidence is not higherBoth halves are read from county sources I extracted or opened live. Not higher because the county nowhere labels the residential outcome as a named artefact — 'power release' is what it produces, not a document called a final.

published inspection process sheet REV 04/2023 + ePermits power release page + fire code §102.3.1 checked 2026-08-28 https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Inspection%20Process%20v3.pdf

Q62 Who notifies the utility for PTO? Core Final sign-off & PTO

Split, and different for the two cases. FOR NEW-CONSTRUCTION SERVICE the AHJ notifies: Harris County sends temporary and permanent power releases to CenterPoint automatically the next business day after permits are issued ('This power release will be sent AUTOMATICALLY at 2am'), valid for one year from the date the permit is issued; the customer then obtains an ESI ID from CenterPoint (713-207-2222 for homeowners) and orders service through a Retail Electric Provider, which sends the start-service order to CenterPoint. FOR DG INTERCONNECTION / PTO the county has no role at all: under CenterPoint Service Standards art. 215.4, before customer-owned generating equipment may be interconnected, application must be made to and approved by CenterPoint (specification 007-231-76) — so the installer or customer deals with the utility directly.

Why the confidence is not higherThe county half is read off Harris County's own live power release page; the DG half off CenterPoint's Service Standards (rev 9-22-2025) which I extracted. Held down because the governing DG specification 007-231-76 is named but unpublished at any URL I could reach, so exactly who submits and who signs PTO inside that process is unverified.

county power release page + utility service standards art. 215 checked 2026-08-28 https://epermits.harriscountytx.gov/EXTERNALPOWERRELEASE.ASPX

Lines marked with a percentage were read off this authority’s own published documents. Unmarked guidance is general good practice, not this jurisdiction’s rule — always confirm against the authority before you submit.

Jurisdiction & key facts

The standing 62-question set, answered for Harris County against this authority’s own published documents. Every answer carries the confidence it was recorded at and the document it came from. Where nothing is published we say so and show where we looked — a blank here is a finding, not a gap.

Harris County is not the permitting authority for residential solar here 88% confidence
Holds
Floodplain/development permitting only (Regulations of Harris County for Floodplain Management, §4.01, under Tex. Loc. Gov't Code §240.901), plus OSSF/septic, driveways and culverts in county ROW, water wells, swimming pools, platting and site development. For FIRE code it holds construction and operational permitting — but only for public buildings, commercial establishments and multifamily of four or more units. It holds NO building code review, NO electrical permit and NO electrical or PV inspection for one- and two-family dwellings.
Delegated to
Residential building code is deferred to the State of Texas under Tex. Loc. Gov't Code ch. 233 Subchapter F ('Residential Building Code'), named expressly in Harris County Fire Code §101.2 Exception 1 and §102.5. Where inspection of new homes is required, the county's published residential process makes builders/contractors obtain independent THIRD-PARTY inspections and enter them into ePermits — the county does not perform them.
Overridden by
Harris County Fire Code §101.2 Exception 1 removes one- and two-family dwellings and townhouses ≤3 storeys (and their accessory structures) from the fire code entirely; §102.5 sends the residential code to the State of Texas. So the fire code's own solar-PV construction permit (§105.6.20) and ESS permits (§105.5.14, §105.6.5) do not reach a single-family rooftop system.
Why not higher
Three independent county documents agree and each was extracted and control-tested by me. (1) Harris County Fire Code effective 01.01.2025, §101.2 Exc. 1 and §102.5, extracted with pdftotext -layout. (2) The county's own Permits FAQ answers 'What does the Harris County Fire Code apply to?' with 'Construction or Substantial Improvement of Public Buildings, Commercial Establishments, and multifamily dwellings consisting of four or more units.' (3) The 'Permits A to Z' tool — the county's own permit finder, listing all 48 permit types — contains no solar, no photovoltaic, no PV, no battery and no electrical permit (positive control 'Fire' = 65 hits, fabricated control 'zzqqx' = 0). Held back from 95 because the county publishes nothing that says in terms 'no permit is required for rooftop solar', and its floodplain-derived §4.01 ('All development within the unincorporated areas of Harris County without first securing a permit is prohibited') is broad enough that a residential development permit for an 'improvement to an existing structure' is arguable — see q3. NOTE, a correction to the brief's naming: the Harris County Engineering Department is now the Office of the County Engineer; eng.hctx.net 301-redirects to oce.harriscountytx.gov. Permits sit in OCE's Permits Division. The Fire Marshal is the fire code official (Fire Code §103.2) but the COUNTY ENGINEER, not the Fire Marshal, receives applications and issues fire construction permits (§103.1, §104.2). No ESD or fire district holds code authority here — the Fire Code names only the Commissioners-Court-appointed County Fire Marshal.

https://www.hcfmo.net/Portals/15/HC%20Fire%20Code/HCFIRECODE_EFFECTIVE_01.01.2025.pdf

Permit required
No solar/PV permit exists in Harris County. There is no PV entry among the 48 permit types, none in the fee schedule's residential section, and none in the document repository.62%
Permit cost
No residential solar permit fee exists. If a rooftop retrofit were permitted as an improvement, the applicable line in the 2025 fee schedule is 'Accessory Structures – All Other Structures…75%
Plan review
30 business days processing time, stated on the Residential Construction & On-site Sewage System permit page. Culvert approval and permitting is separately stated as up to 10 business days.78%
Portal
ePermits — 'Harris County Engineering Department – Permits' at https://epermits.harriscountytx.gov (login, apply, project status, inspection request, power release status, pay as a guest,95%
Electrical code
None adopted by the county for one- and two-family dwellings. Harris County adopts no NEC edition. Its Fire Code references NFPA 70 only incidentally and by currency, not by edition (e.g.75%
Own placard wording
No — not for photovoltaic systems. Harris County does specify placard wording of its own for other things (fire apparatus access roads: 'NO PARKING FIRE LANE' or 'FIRE LANE NO PARKING';75%
Booking an inspection
Portal, with phone as an alternative. Primary route is the ePermits Inspection Request form (enter the permit number, e.g.88%
Labels & placards for this authority

Wording 75%

No — not for photovoltaic systems. Harris County does specify placard wording of its own for other things (fire apparatus access roads: 'NO PARKING FIRE LANE' or 'FIRE LANE NO PARKING'; EV charging: emergency disconnect switches labelled 'EMERGENCY…'; ESS: listed and labelled to UL 9540 and marked 'For use in residential dwelling units'), but it specifies no PV placard wording anywhere.

Size, colour & material 72%

Not for PV. The county does specify letter height, colour and material elsewhere — fire lane markings: 6-inch minimum painted lines in red traffic paint with 4-inch high white lettering at intervals no greater than 25 feet on both sides; key box doors painted bright red; sprinkler riser and fire pump room access doors labelled with reflective lettering — but nothing of the kind for photovoltaic or service-equipment placards.

Where they go None%

What the utility wants on top None%

Each figure above is sourced and dated in the full answer set below (questions 38–43). Where an authority’s own published sheet is older than the code it has adopted, the answer says so.

Their website
Average approval time — application to PTO

From the CPUC interconnection record. Bars show the average days taken each year; a year with no recorded projects is left blank rather than drawn as zero.

About this authority
Type
County
County
Harris County
Regions covered
Solar Requirements
Authority Contact
Building Department
Direct Phone
713-274-3600
Booking & Scheduling