City of Ukiah

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 95% · 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 97% · municipal code
• Is there a separate electrical permit, or is it combined? Combined 68% · fee schedule
• Is a HOA or architectural approval required first? No 55% · department page / inference
• Is there a historic-district review? Not required citywide for an ordinary rooftop PV retrofit. Historic review is triggered only for buildings on the City's Historical and Architectural Inventory or 50+ years old: within the Downtown Zoning Code district, Table 13 'Historical Building Standards' governs exterior modifications (UCC §9227.1); citywide, a demolition-review-committee process exists (UCC §3016) but is triggered by demolition, not by adding PV. No PV-specific exemption or carve-out was found either way. 65% · municipal code
• Is a wind or windstorm certification required? No 80% · municipal code full-text search
• Is a Specific Use Permit or Council approval ever required? Not for typical residential rooftop PV. The zoning code's only CUP-adjacent reference near 'solar' is the 'Major Impact Services and Utilities' definition (grid-scale power generation facilities and battery energy storage systems requiring a use permit), which targets utility-scale infrastructure, not residential rooftop or accessory systems. 68% · municipal code
• Is there a system-size cap on residential generation? Two separate, coincidentally-equal 10 kW AC caps from two different authorities: (1) Planning/permitting gate — UCC §3020 defines a 'small residential rooftop solar energy system' eligible for the expedited/streamlined review process as ≤ 10 kW AC nameplate / 30 kW thermal (Gov. Code §65850.5); larger systems can still be permitted, just outside the expedited path. (2) Utility interconnection cap — Ukiah Electric Utility's own Interconnection Agreement (§7.3) independently limits interconnection sizing to '2x customer load up to 10 kW AC maximum,' with anything over 10 kW subject to a separate utility grid-impact/special review paid for during permitting. 88% · municipal code + utility agreement

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 (licensed contractor or homeowner as owner-builder) 50% · inference
• Must the contractor be registered with this authority before applying? Yes 68% · permit application form
• Is a homeowner permitted to self-install and self-permit? Yes (by state default; not separately addressed by city ordinance) 50% · inference

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? Completed Building Permit Application; signed copy of the City's Interconnection Agreement; 3 copies of plans (2 wet-signed), 4 copies if system >10 kW; plot plan (11x17 or tabloid); 2 sets of truss calculations; PV system design and one-line drawing showing a load-side tap; if not roof-mounted, a plot plan showing system location/trenching relative to existing utilities/easements and disclosing easements. 92% · published checklist
• How many copies, and in what format? 3 copies of plans (2 must be wet-signed); 4 copies if system size exceeds 10 kW; plot plan sized 11x17 or tabloid. 92% · published checklist
• Is a site plan required, and what must it show? Yes — an 11x17/tabloid plot plan; for a non-roof-mounted (ground mount) system it must show the proposed system location and trenching relative to existing utilities/easements, and disclose easements. 90% · published checklist
• Is a one-line / three-line diagram required? Yes 92% · published checklist
• Is a structural PE stamp required, and at what threshold? No fixed PE-stamp threshold codified. For a UCC §3020-eligible small residential rooftop system (≤10 kW AC/30 kW thermal), the applicant may self-verify structural adequacy 'through the use of standard engineering evaluation techniques' rather than obtaining a stamped structural review; two sets of truss calculations are required as a submittal item. 65% · municipal code
• Is an electrical PE stamp required, and at what threshold? No fixed PE-stamp threshold codified. UCC §3020(E)(2) allows applicant self-verification of the existing electrical system's adequacy 'using standard electrical inspection techniques' at the applicant's cost, for eligible small residential rooftop systems. 65% · municipal code

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? Citizenserve (installationid=430) 90% · portal landing page
• Can the whole application be completed online? Partially. The Citizenserve portal exposes an online 'Apply for Permit' action for Building/Fire permits, but the separate utility Interconnection Agreement and Meter Upgrade Application must be submitted 'via mail, email or drop off' to the Electric Utility's Customer Service Dept. — not through a single integrated online flow. 65% · published checklist
• What does a residential solar permit cost? $368.50 (statutory maximum $450, stated as 'to come into compliance with AB 1414') 82% · fee schedule
• How is the fee calculated? Flat 78% · fee schedule
• Is there a separate plan-check fee? No separate plan-check fee identified for the solar permit itself; the $105 'additional plan review' line applies only to later changes/revisions to previously-reviewed plans. 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? 10-15 business days 68% · department page
• How long is an issued permit valid before it expires? 180 days 92% · municipal code
• Which utility handles interconnection here? Ukiah Electric Utility (municipal, non-CPUC utility) — NOT PG&E 95% · municipal code (franchise ordinance)
• Where does the utility sit in the sequence? After permit 92% · utility interconnection agreement

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 88% · municipal code (floating adoption clause)
• Which building code edition is in force? 2025 California Building Code / California Residential Code (Title 24), automatically in force under Ukiah's floating adoption clause. 88% · municipal code
• Which fire code edition is in force? 2025 California Fire Code, including the 2025 California Wildland-Urban Interface Code 96% · municipal code (adopting ordinance)
• Are there local amendments to any of the above? Yes 95% · municipal code
• What is the installation judged against? The current (floating) 2025 CBC/CRC/CEC, as locally amended, plus Civil Code §714(c)(iii) cross-referenced directly in UCC §3020(A)(2), plus the Fire Code's local 'Alternate Power Sources' amendment (placard/back-feed labeling). 85% · municipal code

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 PV-specific local fire-code ridge-setback or roof-access-pathway rule found; governed by the unamended 2025 CFC/CRC baseline (e.g., CRC R324.6 / CFC 1205 pathway and setback tables). 72% · municipal code

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, rapid shutdown is required to the NEC edition in force (2023 NEC, per the floating 2025 CEC adoption); no local amendment to or citation of §690.12 was found. 78% · municipal code full-text search

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? Yes — a permanent 'Alternate Power Source' warning placard on any electrical panel subject to back-feed from a permanently-installed generator, PV system, or other power source. 95% · municipal code (fire code amendment)
• Does the authority specify placard wording of its own? Yes 96% · municipal code (fire code amendment)
• Does it specify letter height, colour or material? Red-colored, permanently engraved and affixed signage; lettering minimum 0.5" tall. 96% · municipal code (fire code amendment)
• Does the UTILITY specify placards beyond the AHJ's? No — the utility's own interconnection documents impose no signage/placard requirement of their own beyond referencing NEC/UL 1741 compliance generally. 82% · utility interconnection agreement
• Where must the labels be placed? Permanently affixed on each electrical panel subject to back-feed from the alternate power source; associated disabling switches must be clearly labeled. 90% · municipal code (fire code amendment)

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? Not a discretionary city 'approved list'; equipment must be UL 1741-listed and CEC RPS-eligible per the utility's Interconnection Agreement. 75% · utility interconnection agreement
• Are batteries permitted, and under what conditions? Yes, explicitly contemplated. No local capacity/location restriction found beyond the unamended 2025 CFC Ch.12/CRC R327 baseline. 80% · utility interconnection agreement
• Is there a separate ESS permit or inspection? Yes 88% · fee schedule
• Is a ground mount treated as a structure? Inferred yes — no PV-specific ground-mount zoning section was found, but the general 'Required Yard Setbacks' article applies front/side/rear setbacks to 'accessory structures' generally, and the City's own PV checklist treats a non-roof-mounted system as needing a site/plot plan showing location, trenching and easements (i.e., treated as sited infrastructure, not exempt from siting review). 55% · municipal code / inference
• Is there a local rule on service upgrades or busbar sizing? No local busbar-sizing or service-upgrade amendment found (no Palm-Springs-style rule). 78% · municipal code full-text search

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 80% · department page
• How much notice is required? Conflicting figures on the City's own page: 'a minimum of 48 hours notice is required prior to each inspection' in one place, and 'Inspections must be requested 24 hours in advance' in another. Reported as-is; not resolved. 75% · department page
• Are same-day or AM/PM windows offered? Not explicitly offered as an AM/PM choice; inspections are conducted in two daily blocks, Mon-Fri 8:00am-noon and 1:00-4:00pm. 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 88% · municipal code
• If delegated, to whom? N/A — not delegated; performed in-house by the City Building Official, consolidated with the Fire Code Official function (same individual, per the Building Services staff listing). 85% · department 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? For a UCC §3020-eligible small residential rooftop system, only ONE inspection is required, after permit issuance, which may be a consolidated Building + Fire inspection; that final passes before the Electric Utility will execute/finalize interconnection. 85% · municipal code
• Is a rough-in or mid-roof inspection required? No, not for a UCC §3020-eligible system — only one final inspection is required by ordinance. No document addresses the sequence for non-eligible, larger, or ground-mount systems. 68% · municipal code

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? No 65% · department page
• What must be on site at inspection? Approved plans and the issued permit card, by general inference ('the required inspections are listed on your copy of the permit... all work must be inspected before it is covered up'); not solar-specific. 50% · department page / inference
• Does the inspector verify labels and listings? Inferred yes, as standard field-inspection practice (verifying UL 1741/CEC-listed equipment and the required Fire Code placards), but no document explicitly states this as an inspection line-item. 50% · inference

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 90% · utility interconnection agreement
• Who notifies the utility for PTO? Installer/Applicant 88% · municipal code
• Is there a re-inspection fee? $105.00 80% · fee schedule
• How are corrections issued and cleared? For application-stage deficiencies, UCC §3020(G) requires the Building Official to issue 'a written correction notice detailing all deficiencies.' For field-inspection failures, standard practice is fail/correct/re-inspect (subject to the $105 re-inspection fee); no dedicated field-correction-notice document was found. 55% · municipal code