City of Azusa

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? Yes 92% · department page
• What does this authority permit itself, and what does it delegate? Both 88% · department page
• Is a permit required for a residential rooftop PV system? Yes 98% · ordinance
• Is there a separate electrical permit, or is it combined? Either 88% · published checklist/bulletin
• Is a HOA or architectural approval required first? No 92% · ordinance
• Is a wind or windstorm certification required? No 65% · department page
• Is a Specific Use Permit or Council approval ever required? Yes, conditionally -- a Use Permit can be required if the Building Official finds, based on substantial evidence, that the system 'could have a specific, adverse impact upon the public health and safety'; denial/approval decisions are appealable to the Planning Commission. 92% · ordinance
• Is there a system-size cap on residential generation? No absolute cap on standard permitting, but the EXPEDITED/streamlined path is limited to systems <=10 kW AC nameplate (or <=30 kW thermal) per Sec. 14-11(a); above that, standard (non-expedited) review applies. Separately, Azusa Light & Water treats systems <=10 kW DC under true Net Energy Metering (NEM) and systems >10 kW DC (up to <1 MW DC) under a different Co-Energy Metering (CEM) time-of-use tariff -- a materially different (non-NEM) billing arrangement above 10 kW DC. 88% · ordinance + utility page

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? Either 55% · utility agreement
• Must the contractor be registered with this authority before applying? Yes 82% · ordinance
• Is a homeowner permitted to self-install and self-permit? Yes 55% · ordinance (absence)

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? Eligibility Checklist for Expedited Solar PV; completed permit application; Standard Electrical Plan (PV only) or engineered electrical plans; roof plan/site plan showing panel layout, fire-safety items, access pathways and label locations; expedited Structural Criteria form OR PE/SE-stamped structural calcs for non-qualifying systems; Electric Single Line Diagram; Electric Load Schedule; solar/wind generating-system electrical specifications and equipment certification/listing sheets; Battery/ESS specifications if applicable; California Solar Consumer Protection Guide (SCPG) acknowledgement pages initialed/signed; signed Solar Process Flow Chart; 3 original signed copies of the Azusa Light & Water NEM (or CEM) Interconnection Agreement submitted to ALW (with ALW Release Form returned) before Building Division submittal. 92% · utility agreement + published checklist
• How many copies, and in what format? Two (2) sets of plans to the Building Division (or electronic submittal); three (3) original signed copies of the NEM/CEM Interconnection Agreement to Azusa Light & Water, plus one (1) Solar Consumer Protection Guide. 90% · published checklist/bulletin
• Is a site plan required, and what must it show? Yes -- a roof/site plan showing PV or thermal panel layout, approximate roof-access-point location, code-compliant clear access pathways, PV system fire classification, and the locations of all required labels/markings and electrical disconnecting means. 90% · published checklist
• Is a one-line / three-line diagram required? Yes 92% · utility agreement
• Are string and conductor calculations required? Yes (implicit, via the standard-plan eligibility limits) 65% · published checklist
• Is a structural PE stamp required, and at what threshold? Structural PE/SE stamp not required if the system meets the expedited 'Structural Criteria' checklist; REQUIRED (CA-licensed Civil or Structural Engineer) for any system that does not qualify -- covering roof type/framing, panel weight/attachment method, and site-specific calculations. 92% · published checklist/bulletin
• Is an electrical PE stamp required, and at what threshold? No electrical PE/SE stamp threshold found for residential PV in any reviewed document (Submission Bulletin, Eligibility Checklist, NEM Agreement, ED-25/ED-27). 55% · published checklist (absence)

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? GoPost / TransTech ePlanSoft online plan-review portal (gopost-transtech.eplansoftreview.com, portal=azusa), plus direct email submittal to buildingpermits@azusaca.gov for the expedited solar path. 88% · portal landing page
• Can the whole application be completed online? No (partially) -- documents/fees can be submitted and paid electronically, but the Submission Bulletin states the applicant must physically go to the Building Division ('213 E. Foothill Blvd.') to obtain (pick up) the issued permit. 70% · published checklist/bulletin
• What does a residential solar permit cost? Residential PV <=15 kW: $450 flat, OR 45% of the valuation-based building-permit fee -- WHICHEVER IS LESS. Residential PV >15 kW: $450 + $15/kW over 15 kW, or 45% of the valuation-based fee, whichever is less. 88% · fee schedule
• How is the fee calculated? Tiered / Per kW 85% · fee schedule
• Is there a separate plan-check fee? No -- combined 65% · fee schedule

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? 1 to 3 business days 90% · published checklist/bulletin
• How long is an issued permit valid before it expires? 365 days (1 year) from issuance or from the last approved inspection, whichever is later; extendable in increments of up to 180 days each (extension fee up to 25% of the original permit fee per extension). 96% · ordinance
• Which utility handles interconnection here? Azusa Light & Water (ALW) -- the City of Azusa's own municipally-owned electric utility, NOT Southern California Edison. 98% · utility/department page
• Where does the utility sit in the sequence? Before permit AND parallel at final -- ALW is not CPUC/Rule-21 jurisdictional (it is a municipal utility with its own rules). 92% · utility DG process flow chart

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? 2023 90% · ordinance
• Which building code edition is in force? 2025 California Building Code and 2025 California Residential Code (Title 24 Parts 2 and 2.5) 90% · ordinance
• Which fire code edition is in force? 2023 Los Angeles County Fire Code (LACFC, LACC Title 32, Ordinances #23-0008 & 2023-0058, effective 2024-01-11) is the edition LACoFD -- the actual fire AHJ -- currently administers and fee-schedules against. 72% · fire district fee ordinance
• Are there local amendments to any of the above? Yes 85% · ordinance
• What is the installation judged against? The 2025 CBC/CRC/CEC as locally amended (Ch. 14 of the Azusa Municipal Code) for building/electrical; the 2023 LACFC as administered by LACoFD for fire-related aspects (ESS, PV disconnect/rapid-shutdown placarding); Azusa Light & Water's own Electric Service Requirements and ED-25/ED-27 engineering standards for the interconnection equipment; and the approved plan set. 82% · ordinance

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? Not specified by the city itself -- the Submission Bulletin instead directs applicants to 'Examples of clear path access pathways ... available in the State Fire Marshal Solar PV Installation Guide' rather than setting an Azusa-specific ridge-setback figure. Municode search for 'ridge' returns 0 PV-related hits (positive control 'National Electrical Code' returned 74 hits and fabricated control 'zzqqx' returned 0, so the search itself is proven working). 75% · published checklist (absence)

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.

• Is rapid shutdown required, and to which NEC edition? Yes, per NEC 690.12 as incorporated into the 2023 NEC / 2025 California Electrical Code currently in force. 85% · adopting regulation + fire authority guide

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.

• Which placards does this authority require at the service equipment? City/Building-level (generic, NEC-referenced): sign identifying PV power-source system attributes at the DC disconnect; sign identifying the AC point of connection; sign identifying the switch for the alternative power system. Fire/LACoFD-level (retained by LACoFD, specific wording): 'LACoFD Electrical Power Source Disconnect Placarding System' -- an Exterior Placard reading 'F.D. -- ELECTRICAL / BLDG DISCONNECT / #X of Y' at each panel/enclosure/disconnect that must be operated, plus Panel-Interior Placards identifying specific breakers, wherever a PV/ESS/generator disconnect or rapid-shutdown initiation device exists. 90% · fire authority guide
• Does the authority specify placard wording of its own? Yes (via LACoFD, which retains this specific item) / No (Building Division has no verbatim wording of its own beyond generic NEC-style sign descriptions). 88% · fire authority guide
• Does it specify letter height, colour or material? Yes -- Exterior placards: minimum 2in x 3.5in weather-resistant plastic, engraved, red letters on a yellow background, solid all-capitals Arial font, minimum 24pt (28pt bold for 'F.D.' and '#X of Y'). Panel-Interior placards: minimum 7/16in x 3/4in, same color/material, bold Arial, minimum 24pt. Attachment by permanent, material/weather/surface-compatible epoxy. 95% · fire authority guide
• Is a site plan / facility map placard required, and what must it show? Yes, functionally -- a required plan-set drawing (not a posted physical placard) showing the roof layout of all panels/modules, clear access pathways, and approximate locations of electrical disconnecting means and roof-access points; and, where plans are required for ESS/disconnects, a formal 'Electrical Power Source Disconnect Schedule' table listing every energy source, its disconnection-number ('#X of Y'), and the disconnecting device/equipment. 78% · published checklist + fire authority guide
• Does the UTILITY specify placards beyond the AHJ's? No additional placard/labeling spec found in Azusa Light & Water's own engineering standards beyond generic equipment requirements (production meter model, lockability). 82% · utility engineering standard (absence)
• Where must the labels be placed? Per Azusa Light & Water (ED-25/ED-27): the main service panel, production meter socket, and AC disconnect must be within 8 feet of each other and a minimum of 10 inches apart, located outdoors, and accessible to the utility at all times. Per LACoFD (Appendix B): Exterior placards go on/immediately adjacent to each panel/enclosure or standalone disconnect switch that must be operated; Panel-Interior placards go inside a panel to identify specific breakers when multiple switches in one enclosure must be operated. 92% · utility engineering standard + fire authority guide

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.

• Where must the AC disconnect be, relative to the meter? Per Azusa Light & Water's own DG engineering standard (ED-25/ED-27): the main service, production meter socket, and AC disconnect shall be located within 8 feet of each other and a minimum of 10 inches apart, outdoors, and accessible to the utility at all times; the AC disconnect must be lockable in the off position. 95% · utility DG engineering standard
• Must equipment be on a specific approved list? Yes, implicitly -- standard UL listing, not a separate city-approved-products list. 85% · fire authority checklist
• Are batteries permitted, and under what conditions? Yes, under LACoFD's 2023 LACFC Sec. 1207.11 (Group R-3/R-4): max 20 kWh per individual ESS unit; 80 kWh aggregate per dwelling (in any combination of garage/exterior-wall/outdoor-ground locations); UL 9540 (unit) and UL 1741 (inverter, unless covered by the UL 9540 listing) required; installation restricted to detached garages, attached garages (separated per CRC R302.6), or outdoors/exterior walls meeting setback rules (>=5ft from lot lines/buildings/combustibles, >=10ft from vegetation, >=3ft from openings); banned from dwelling units, sleeping rooms, closets, bathrooms, basements, non-garage accessory structures, and vaults; >=3ft spacing between units; fire detection required for attached-garage installs; impact protection required if <36in above finished floor and subject to vehicle damage; remote disconnect device required for interior units. 95% · fire authority guide
• Is there a separate ESS permit or inspection? Yes -- ESS with a capacity above 3 kWh requires a SEPARATE LACoFD plan review and field inspection (not delegated to Azusa Building & Safety), billed at LACoFD's own fee-ordinance rates ($195 plan review for Group R-3/R-4, $390 field inspection, per Appendix QQ). 95% · fire authority checklist + fee ordinance
• Is a ground mount treated as a structure? Not explicitly addressed for solar in Azusa's Development Code (searched Municode; 'photovoltaic' returns exactly 1 hit citywide, i.e. Sec. 14-11 only -- a proven absence at the zoning-code level). A ground-mounted PV array would presumptively fall under the generic 'Accessory Structures' provisions (Development Code Sec. 88.42.020: max 1 story/20ft height, rear/side setbacks, 10ft separation from other structures), but no PV-specific text confirms this classification. 50% · ordinance (inferred)
• Is there a local rule on service upgrades or busbar sizing? Yes -- (1) For the expedited path, PV must interconnect to a single-phase 120/240V panel with a bus-bar rating of 225A or less; (2) Any new or upgraded service panel requires prior 'spot approval' from the Azusa Light & Water electric division before installation -- installing at an unapproved spot risks project delay until corrected. 90% · utility engineering standard
• Is a specific mounting system or attachment spacing required? No single prescriptive spacing table -- case-by-case via the 'expedited Structural Criteria' form (for qualifying systems) or PE/SE-stamped structural calculations covering roof-covering type, framing size/spacing, panel weight and support locations, attachment method, and (where an approved racking system is used) manufacturer documentation of max allowable weight and attachment method. 65% · published checklist/bulletin

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? Phone 88% · published checklist/bulletin
• How much notice is required? Typically next business day 80% · published checklist/bulletin

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? Delegated (split) 90% · ordinance + fire authority checklist
• If delegated, to whom? Los Angeles County Fire Department (LACoFD), Fire Prevention Division -- Regional/Specialty inspection office nearest the project (for ESS>3kWh and PV disconnect/rapid-shutdown placarding only; conventional PV itself is inspected by Azusa Building & Safety). 90% · fire authority checklist

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? (1) Building permit application/plan check by Azusa Building & Safety; (2) if ESS>3kWh or a PV disconnect/rapid-shutdown placard is present, a separate LACoFD Fire Prevention plan review; (3) system installation; (4) single final Building & Safety inspection (only one inspection required for expedited PV per Sec. 14-11(k)); (5) if applicable, a separate LACoFD field inspection of the ESS/disconnect placarding; (6) Building & Safety releases the passed final to Azusa Light & Water; (7) ALW performs its own final utility inspection; (8) ALW installs and energizes the Solar NEM meter. 85% · process flow chart
• Is a rough-in or mid-roof inspection required? No 92% · ordinance

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 95% · fire authority checklist
• What must be on site at inspection? Approved plans/permit; module and inverter spec/cut sheets; for ESS, the ESS unit and inverter cut/specification sheets plus (if requested) the full installation manual and proof of UL 9540/UL 1741 listing; for LACoFD ESS/PV inspections specifically, digital proof of the construction permit and contractor licensing/billing information provided in advance by email. 85% · fire authority checklist
• Does the inspector verify labels and listings? Yes 95% · published checklist/bulletin

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? Final 80% · process flow chart
• Who notifies the utility for PTO? AHJ 88% · process flow chart
• Is there a re-inspection fee? City (Building Division): $148.01/hour (Sec. 305.8 reinspection, per the fee schedule effective 2/2/2026, up from $143.00 the prior year). LACoFD (fire, ESS/PV disconnect placarding): $98.00 flat for 'additional inspections after initial inspection and one reinspection.' 90% · fee schedule
• How are corrections issued and cleared? Plan-review corrections: the Building Division notifies the applicant of required corrections; the applicant must correct and resubmit plans for additional plan check (may repeat). Field corrections: if a PV system fails inspection, 'a subsequent inspection is authorized' -- the applicant clears the noted deficiencies and requests re-inspection (a re-inspection fee applies at that point, see q59). 85% · published checklist/bulletin + ordinance