City of Pasadena

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. The City of Pasadena (Planning & Community Development Department, Building & Safety Division, plus its own Fire Department) is the AHJ for building/electrical/fire permitting of residential rooftop solar within city limits; Pasadena is a charter city with its own departments, not served by LA County Building & Safety or LA County Fire. 90% · department page
• What does this authority permit itself, and what does it delegate? Both 90% · fee schedule
• Is a permit required for a residential rooftop PV system? Yes 90% · ordinance handout
• Is there a separate electrical permit, or is it combined? Combined 80% · fee schedule
• Is a HOA or architectural approval required first? Conditionally yes — PWP's interconnection application package requires a 'Letter of Approval from the Home Owners Association's Board of Directors (if applicable)'; there is no separate citywide architectural-review requirement for solar outside HOA-governed properties or historic districts (see q25). 70% · utility page
• Is there a historic-district review? Yes. The City's PV Permit Issuance Checklist itself asks whether the project is 'affiliated with any historic resource' (flagging additional submittal requirements) and whether there is an active Planning Case requiring incorporation into 'Design Review'; separately, any exterior alteration within one of Pasadena's designated Historic Districts requires a Certificate of Appropriateness, and the City's own Design Guidelines for Historic Districts specifically direct that solar panels avoid front roof planes, lie flush with the roof, and use non-reflective finishes. 75% · design guidelines
• Is a wind or windstorm certification required? No 50% · checklist
• Is a Specific Use Permit or Council approval ever required? Not required for by-right accessory rooftop PV on a single-family lot; however, the City's own PV checklist flags that a residential system producing 10 kW or more must be routed to Building for a determination of whether the project 'constitutes a commercial use,' which could in turn trigger a Conditional Use Permit or other entitlement. 65% · checklist
• Is there a system-size cap on residential generation? No fixed zoning-wide kW cap, but two practical caps apply: (a) the City's checklist treats a residential system of 10 kW or more as needing a commercial-use determination; (b) PWP limits net-metered system sizing to no more than 150% of the customer's trailing 12-month average annual consumption (or 2 W DC per sq ft of conditioned floor area for new accounts with no billing history), per Public Resources Code §25782. 80% · 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 — plans/installation must be signed by a California-licensed C-46 (Solar) or C-10 (Electrical) contractor, or a homeowner may self-permit as an owner-builder 65% · checklist
• Must the contractor be registered with this authority before applying? Yes 85% · department page
• Is a homeowner permitted to self-install and self-permit? Yes 60% · form

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? Site/plot plan showing PV layout & dimensions; roof plan projection; structural wind-uplift calculations (ASCE 7) stamped by a CA-licensed civil/structural engineer; circuit-sizing/voltage calculations and single-line diagram signed by a CA-licensed EE or C-46/C-10 contractor; manufacturer spec sheets, installation instructions and equipment listings (UL 1703 matching roof fire class); plus PWP's separate interconnection package (single-line diagram, site plan, NEM enrollment form, signed customer/installer contract, copy of electric bill, interconnection agreement, HOA approval letter if applicable). 85% · checklist
• How many copies, and in what format? 3 sets of plans, minimum 11" x 17", plus 1 CD or flash drive (PDF files) 85% · department page
• Is a site plan required, and what must it show? Yes — must show roof plan projection with dimensions of all PV equipment and arrays; PWP additionally requires the site plan to show the main service panel, AC disconnect, meter, any automatic transfer switch, and labeling of all existing/new equipment. 85% · checklist
• Is a one-line / three-line diagram required? Yes 92% · checklist
• Are string and conductor calculations required? Yes 88% · checklist
• Is a structural PE stamp required, and at what threshold? Yes, for all rooftop residential PV — structural calculations for wind uplift (checklist cites ASCE 7-10) must be stamped/signed by a State-registered Civil or Structural Engineer; no minimum system-size exemption threshold is stated in the checklist. 70% · checklist
• Is an electrical PE stamp required, and at what threshold? No mandatory PE stamp — circuit/voltage calculations may instead be prepared and signed by a California-licensed C-46 or C-10 contractor in lieu of a licensed Electrical Engineer. 75% · checklist

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? Tyler Technologies EnerGov 'Citizen Self Service' (Permit Center Online) at mypermits.cityofpasadena.net; PWP's interconnection process runs on a separate third-party portal, PowerClerk. 90% · portal landing page
• Can the whole application be completed online? Partially — Citizen Self Service/Express Permit Portal allows fully-online submittal for ADUs, tenant improvements, additions, commercial solar and seismic retrofit, and issues sub-trade (mechanical/electrical/plumbing) express permits within minutes; residential rooftop PV is not explicitly listed among the categories the City currently requires (or confirms) can be submitted fully online, so a full plan-review PV submittal may still need an in-person/paper component. 55% · department page
• What does a residential solar permit cost? $450 flat (Building Services electrical/PV fee, 0-15 kW AC, item 314; +$15/kW above 15 kW) PLUS a separate Fire Department 'PV System (Single Family Dwelling)' plan-review/inspection fee of $315 (item 225) = roughly $765 total for a typical ≤15kW system. 80% · fee schedule
• How is the fee calculated? Tiered / Per kW (flat base fee for 0-15 kW AC, plus a per-kW adder above 15 kW) 85% · fee schedule
• Is there a separate plan-check fee? No — the residential PV/ESS fee (item 314) is labeled a 'Total Fee', implying plan review is bundled into the flat/per-kW amount rather than billed separately. 60% · 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? Simple/complete submittals can be reviewed over-the-counter in about 5-10 minutes; more complex plans go to a queued 'behind-the-counter' review taking approximately two to four weeks. 80% · department page
• How long is an issued permit valid before it expires? 180 days from date of issuance 90% · department page
• Which utility handles interconnection here? Pasadena Water and Power (PWP) — a municipally-owned electric utility operated by the City of Pasadena itself, not Southern California Edison. CPUC Rule 21 does not apply here; PWP sets its own interconnection rules under PMC Ch. 13.04 and PWP Regulation 23. 95% · utility page
• Where does the utility sit in the sequence? Before permit (with a second utility touchpoint after permit) — the customer must obtain PWP 'Initial Review' approval via PowerClerk BEFORE applying for the City building permit; after the permit is issued, construction is done, and City Building & Safety/Fire sign off, the installer separately requests PTO from PWP, which performs its own inspection and meter swap AFTER the AHJ's final sign-off, before energization is authorized. 90% · utility DG manual / department page

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 (via the 2025 California Electrical Code, which the City adopts by PMC; the 2025 CEC cycle is based on the 2023 NFPA 70 NEC and is effective statewide from 1 Jan 2026) 80% · adopting regulation
• Which building code edition is in force? 2025 California Building Code (Volumes 1 & 2 and Appendices) and 2025 California Residential Code, adopted by the Pasadena Municipal Code 90% · adopting regulation
• Which fire code edition is in force? 2025 California Fire Code, adopted by the Pasadena Municipal Code 90% · adopting regulation
• Are there local amendments to any of the above? Yes (expected) — the handout states the codes are 'adopted by PMC', implying a local adopting ordinance that conventionally carries local amendments, but the specific amendment text could not be verified in this run. 55% · department page
• What is the installation judged against? 2025 CEC Articles 690 & 705; 2025 CRC (including R324 fire setbacks); manufacturer's listing/installation instructions; UL 1703 fire classification matching the roof assembly; and explicit compliance with the 'California Solar Permitting Guidebook' (cited by name in the City's own PV checklist item 13). 80% · checklist

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.

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

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 City of Pasadena on this step yet — 1 question checked and found unpublished. The guidance above is general.

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? (1) A 'WARNING – DUAL POWER SOURCE' label at the main service panel stating power is supplied both by the utility and a solar PV system; (2) a labelled AC disconnect ('CAUTION – PHOTOVOLTAIC SYSTEM AC DISCONNECT' with operating current/voltage fields); (3) a facility/plot-plan placard. 90% · utility DG manual
• Does the authority specify placard wording of its own? Yes — PWP specifies exact placard wording (see q38) in its Electric Service Requirements, Fig. 8.3 / Dwg SV-906. 90% · utility DG manual
• Does it specify letter height, colour or material? Color/material: labels shall be red background with white numbers and letters; permanently and securely attached at the meter and AC disconnect; if a placard (rather than a label) is used it must be mechanically attached. No specific minimum letter height (in inches) is given. 85% · utility DG manual
• Is a site plan / facility map placard required, and what must it show? Yes — 'A placard containing a plot plan with the location of the main service panel, solar/energy storage equipment, and AC disconnect is required for all distributed generation projects.' Addressing placards are additionally required on any parcel with multiple meters, identifying which meter/main-breaker the solar/ESS is interconnected to. 90% · utility DG manual
• Does the UTILITY specify placards beyond the AHJ's? Yes, substantially — PWP's Signage requirements (exact wording, color, material and placement, plus the plot-plan/addressing placards) go well beyond anything the City's own PV Permit Issuance Checklist specifies, which contains no placard wording, color or material requirements at all. 90% · utility DG manual
• Where must the labels be placed? Dual-power-source warning label at the main service panel; AC-disconnect caution label/placard at the AC disconnect; plot-plan/facility placard mechanically or permanently attached 'at the meter and AC disconnects.' 85% · utility DG manual

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 PWP's current (Sept 2025) Electric Service Requirements §VIII.C.1(c): the AC disconnect 'shall be located within ten (10) feet of the main service panel and within line of sight' (an alternate location needs advance PWP Electric Service Planning approval). Note a conflict: PWP's public 'Solar Eligibility and Requirements' web page instead states an 8-foot / line-of-sight-of-the-utility-METER rule — the newer, dated PDF was treated as controlling. 65% · utility DG manual
• Must equipment be on a specific approved list? Yes — PV modules, inverters and meters must appear on the CEC's 'Eligible Equipment Lists,' and roof-mounted modules must carry a UL 1703 fire classification equal to the roof assembly's own classification. 88% · utility page
• Are batteries permitted, and under what conditions? Batteries/ESS are permitted subject to PWP review: a backup system must serve only a subpanel of essential loads (no backfeed to the main service panel), must include an automatic transfer switch to prevent parallel operation with PWP's grid during an outage, must be reviewed and approved by PWP before construction begins, and is subject to a PWP commissioning test (witnessed field test) before Permission to Operate is issued. 78% · utility DG manual
• Is there a separate ESS permit or inspection? No — the City bundles PV and ESS into a single permit/fee: FY2027 fee item 314 is titled 'Residential PV Solar and ESS (Total Fee).' 72% · fee schedule
• Is a ground mount treated as a structure? Yes — the City's PV checklist requires ground-mounted systems to state maximum height above grade and confirm compliance with zoning setbacks and lot-coverage requirements, treating the array as a site structure rather than mere rooftop equipment. 80% · checklist

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 (Tyler EnerGov Citizen Self Service / Inspection Portal at mypermits.cityofpasadena.net), with call/text/email confirmation of the inspection window. 78% · department page
• Are same-day or AM/PM windows offered? An inspection window is provided with the booking confirmation ('receive call/text/email confirmation with inspection window'); no explicit AM/PM split terminology was found. 55% · department page

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? Yes — City Building & Safety and City Fire perform their own final inspections; not delegated to LA County. PWP separately performs its own post-permit interconnection inspection before issuing Permission to Operate. 85% · utility page
• If delegated, to whom? N/A — not delegated; the City performs its own code inspections (see q52). PWP's inspection is a separate utility interconnection step, not a delegation of AHJ code-inspection authority. 78% · utility page

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) PWP 'Initial Review' approval via PowerClerk; (2) City building/electrical (and Fire, where applicable) permit issuance; (3) construction; (4) City Building & Safety/Fire final inspection sign-off; (5) installer submits PTO request + final sign-off copy to PWP via PowerClerk; (6) PWP field inspection; (7) PWP replaces meter with a bi-directional solar meter; (8) PWP issues Permission to Operate. 85% · utility page

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, in substance — the City publishes a 'Residential Photovoltaic Power Systems Permit Issuance Checklist' (dated 3/22/17) used by staff to verify submittal completeness against 14 numbered code-compliance items; it is framed as a plan-review/permit-issuance checklist rather than a document explicitly labeled a field-inspection checklist. 60% · checklist
• What must be on site at inspection? Inspection card/permit folder and the approved stamped plans must be available; for PWP's separate step, either physical access to the main service panel from the street (installer/customer need not be present) or photos uploaded to PowerClerk for a virtual inspection. 55% · department page
• Does the inspector verify labels and listings? Yes — equipment listing (UL 1703 roof-fire-classification match, CEC Eligible Equipment List membership) is a condition of permit issuance per the City's own checklist, and PWP separately verifies as-installed labeling and equipment against the submitted single-line/site-plan documents during its own field inspection. 62% · checklist

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 — a 'Building Final Inspection Sign-off' is what the AHJ issues on passing; PWP explicitly requires a copy of this document before it will proceed with its own PTO inspection. 85% · utility page
• Who notifies the utility for PTO? Installer (on the customer's behalf) — the customer/installer submits the PTO request package, including the Building Final Inspection Sign-off, through PWP's PowerClerk portal; PWP does not automatically pull the sign-off from the City. 80% · utility page
• Is there a re-inspection fee? $128 general Building & Safety reinspection fee (FY2027 fee schedule item 236, 'charged when project is not ready for inspection or not approved during initial inspection'); a related $64 fee (50% of the base fee) applies if a booked inspection is cancelled with less than 24 hours' notice (item 237). 80% · fee schedule
• How are corrections issued and cleared? At plan-review stage, the City uses a 'concurrent plan review' process producing one consolidated corrections report across all reviewing departments/divisions. At field-inspection stage, a failed item is noted on the inspection card and a paid reinspection ($128, item 236) is required once the correction is made. 55% · department page