City of Berkeley

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% · authority's own page
• What does this authority permit itself, and what does it delegate? Both 90% · department page
• Is a permit required for a residential rooftop PV system? Yes 95% · department bulletin
• Is there a separate electrical permit, or is it combined? Combined 75% · checklist / fee schedule
• Is a HOA or architectural approval required first? No 80% · department bulletin
• Is there a historic-district review? No for a typical residential rooftop system (Gov. Code §65850.5 preempts local design review); however, exterior alterations to a designated City Landmark, Structure of Merit, or property within a Historic District can trigger a Landmarks Preservation Commission structural-alteration-permit review, which is not solar-specific but could apply if panels/mounts change a protected building's exterior. 60% · authority's own search results / department page
• Is a wind or windstorm certification required? No 65% · checklist
• Is a Specific Use Permit or Council approval ever required? No — not required for a qualifying residential rooftop system 60% · department bulletin (inference)
• Is there a system-size cap on residential generation? No hard cap found on residential system size; the streamlined/SolarAPP+ track is limited to 10kW AC on a single-family or duplex roof, but larger systems remain eligible for the standard permit process. 70% · checklist

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 70% · 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 65% · checklist

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? Code Compliance Checklist (Solar PV, form #166) plus: Schematic Site Plan; Structural Plan (or Structural Criteria worksheet for flush-mount); Electrical Plan / single-line diagram (or a Standard Plan worksheet for central/string or microinverter systems); manufacturer spec sheets; Permit Application (Building/Electrical/Mechanical/Plumbing). Streamlined/SolarAPP+ track first requires passing the Eligibility Checklist. 95% · authority's own page
• How many copies, and in what format? Electronic PDF only — unsecured/flattened, embedded fonts, minimum 11x17 sheet size (per the Code Compliance Checklist header); standard walk-in submittals are brought on a USB flash drive at 300 dpi minimum, max attachment size ~100-195MB depending on the page cited; no paper plans accepted at the Permit Service Center. 85% · checklist / department bulletin
• Is a site plan required, and what must it show? Yes — Schematic Site Plan showing building footprint with distances to property lines, PV system location(s), main electrical service panel and subpanel location(s), all exterior/interior equipment and disconnect locations with working clearances, and clear roof access pathways from eave to ridge; must include project info, scope of work, and a legend. 95% · checklist
• Is a one-line / three-line diagram required? Yes 95% · checklist
• Are string and conductor calculations required? Yes 85% · standard plan worksheet
• Is a structural PE stamp required, and at what threshold? Required only if the array does not qualify under the Structural Criteria for Residential Flush-Mounted Solar Arrays worksheet (roof condition, slope, rafter span/spacing, anchor spacing and wind-uplift fastener checks all pass); if any item fails, 'project-specific drawings and calculations stamped and signed by a California-licensed civil or structural engineer' are required. Non-flush-mounted arrays (>10in gap) always require an engineer per the CCC. 90% · 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? Permits Online (Berkeley's permit portal) for standard/streamlined applications and record tracking/inspections; SolarAPP+ for real-time automated review/issuance of eligible residential PV/ESS systems. 95% · authority's own page
• Can the whole application be completed online? Yes 90% · authority's own page
• What does a residential solar permit cost? SolarAPP+: $100 flat/system. Standard electrical permit — Residential ≤15kW: $200 (includes plan check). Residential >15kW: $250 plus $15/kW above 15kW (includes plan check). Energy Storage System (residential, ≤50kW aggregate): $150; >50kW aggregate: $275. 95% · fee schedule
• How is the fee calculated? Tiered 95% · fee schedule
• Is there a separate plan-check fee? No 85% · 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? Residential Solar PV is listed among the Permit Service Center's over-the-counter projects with a plan check of about 30 minutes; the Solar Permits page states standard-process solar applications are 'reviewed within one working day,' and streamlined/SolarAPP+ applications submitted electronically are issued in 1-3 business days (SolarAPP+ can be real-time). 90% · department page
• Which utility handles interconnection here? PG&E (Pacific Gas & Electric) 95% · authority's own page
• Where does the utility sit in the sequence? Parallel 55% · utility manual (inference)

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 80% · checklist (current, dated)
• Which building code edition is in force? 2025 California Residential Code / California Building Code (California's 2025 Building Standards Code cycle, effective 1/1/2026) 80% · checklist (current, dated)
• Which fire code edition is in force? 2025 California Fire Code (by inference from the same statewide code cycle); BMC Ch. 19.48 is titled 'Berkeley Fire Code' with §19.48.010 'Adoption of California Fire Code.' 55% · municipal code TOC (archived, text unconfirmed)
• Are there local amendments to any of the above? Yes 75% · municipal code TOC (archived)
• What is the installation judged against? The 2025 CRC/CEC/CMC/CPC/CEnC/CGBSC as locally amended by BMC Title 19 (Chs. 19.28-19.37), plus Berkeley's own Code Compliance Checklists (Solar PV, ESS) which restate and supplement the applicable code sections for plan review. 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.

• What ridge setback and access pathways are required? Two minimum-36in-wide clear pathways from lowest roof edge to ridge (at least one on the street/driveway side); ridge setback of 18in on both sides of the ridge if the array covers ≤33% of plan-view roof area, or 36in if it covers >33% [CRC R329.6.1/R329.6.2]; a 36in pathway must also be kept to any emergency escape/rescue opening. 90% · checklist

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, required to CEC 690.12 (module-level rapid shutdown under the 2025 CEC, which follows 2023 NEC Art. 690.12): ≤80V inside the array boundary and ≤30V outside/beyond 3ft from point of entry, both within 30 seconds of initiation; initiation device located outside the building. 90% · checklist

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? A permanent plaque/directory identifying all power sources at the service equipment location (CEC 705.10); a rapid-shutdown label at the service equipment indicating initiation-device location; a DC-voltage disclosure label at the DC disconnect/inverter/distribution equipment (CEC 690.7(D)); 'WARNING: PHOTOVOLTAIC POWER SOURCE' labels on exposed raceways, pull/junction box covers and unused conduit-body openings (CEC 690.31(D)(2)); plus, from PG&E, an engraved line/supply-side-connection placard on the metering equipment when applicable. 90% · checklist / utility manual
• Does the authority specify placard wording of its own? Yes 90% · checklist
• Does it specify letter height, colour or material? Reflective labels, capital letters, minimum 3/8in letter height, white lettering on a red background; spacing between labels not more than 10ft; suitable for the installation environment. 90% · checklist
• Is a site plan / facility map placard required, and what must it show? A Schematic Site Plan and Roof Plan are required at submittal, showing building footprint, PV location, equipment/disconnect locations, and the two required 36in clear access pathways to the ridge; a permanent plaque/directory (not a full facility map) is what's actually required to be posted at the service equipment. 75% · checklist
• Does the UTILITY specify placards beyond the AHJ's? Yes 90% · utility manual
• Where must the labels be placed? AHJ-required labels: at the service equipment/directory location, at the DC disconnect or inverter, and on any raceway/enclosure/junction box carrying PV source conductors (spaced ≤10ft apart, visible after install). Utility-required label: PG&E's engraved line/supply-side-connection placard is installed on the metering equipment itself. 90% · checklist / utility 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? Required for all self-contained/transformer-rated meter panels EXCEPT single-phase, socket-based, self-contained panels rated ≤320A continuous, which are exempt unless a K-base meter panel (always requires one). Where required, the AC disconnect must be PG&E-approved and located per PG&E Electric Design Standard 060559, generally at/adjacent to the meter/service equipment; line-side (supply-side) connections additionally require a fusible disconnect plus an engraved placard on the metering equipment. 85% · utility manual
• Must equipment be on a specific approved list? Yes 90% · checklist
• Are batteries permitted, and under what conditions? Yes, with conditions: UL 9540-listed, max 20kWh per unit / 600kWh aggregate on the property (CRC Table R330.5); not in habitable rooms, sleeping rooms, or closets opening onto them; only in detached garages/accessory structures, separated attached garages, protected exterior locations ≥3ft from doors/windows, or fire-rated interior utility rooms/closets with 20-min-rated self-closing doors; ESS units separated ≥3ft from each other unless UL 9540A large-scale fire testing supports less; protected from vehicle impact where applicable. 95% · checklist
• Is there a separate ESS permit or inspection? No — issued under the same electrical permit process as the PV system, not as a standalone permit type 70% · fee schedule / checklist
• Is there a local rule on service upgrades or busbar sizing? For the streamlined track, the PV system must interconnect to a single-phase 120/240V service panel with a busbar rating of 225A or less (larger services route to the standard/engineered review track); no separate local busbar-sizing amendment to CEC 705.12 beyond that eligibility threshold was found. 75% · checklist
• Is a specific mounting system or attachment spacing required? Yes 90% · 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 (Permits Online) or Phone (automated scheduling line) 90% · department page
• Are same-day or AM/PM windows offered? No guaranteed AM/PM window is published; inspections run Mon-Fri 9am-4pm and an estimated time is posted online the morning of the scheduled day. 75% · 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 90% · department page
• If delegated, to whom? N/A — not delegated; performed by the City of Berkeley Building & Safety Division's own area-assigned inspectors (and, for fire/life-safety items, the Berkeley Fire Department's own Fire Prevention Division). 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? Streamlined/SolarAPP+ track: one consolidated final inspection once installation is complete. Standard track: may include an electrical rough/underground inspection plus a final, depending on scope; all required finals for a permit (Building/Electrical/Mechanical/Plumbing) must be scheduled together on the same day. 75% · department bulletin
• Is a rough-in or mid-roof inspection required? No, not for the streamlined track 75% · department bulletin

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 80% · checklist
• What must be on site at inspection? Printed copies of the permit, the approved plans, and the job card; per the CCC, manufacturer's specification sheets and grounding/installation instructions should also be available for the inspector. 90% · department page
• Does the inspector verify labels and listings? Yes 75% · checklist / department page

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 55% · department page (inference)
• Who notifies the utility for PTO? Installer 45% · utility manual (inference, low confidence)
• Is there a re-inspection fee? $250/hour, one-hour minimum 80% · fee schedule
• How are corrections issued and cleared? Inspector issues an Inspection Report listing items to correct; once all items are addressed, the applicant/contractor schedules a re-inspection (same portal/phone channels as the original inspection) to clear them. 85% · department page