City of Los Angeles

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 — LADBS is the AHJ for residential solar within the City of Los Angeles (not LA County, which is a separate AHJ with its own codes). 95% · information bulletin (P/GI 2023-027)
• What does this authority permit itself, and what does it delegate? Both — LADBS permits building and electrical itself. Fire is LAFD's; utility interconnection and metering are LADWP's. 92% · information bulletin (P/GI 2023-027)
• Is a permit required for a residential rooftop PV system? Yes. An electrical permit is always required. A building permit is required for the structural support unless one of two published exceptions is met (roof-mounted flush systems on 1–2 family dwellings meeting a prescriptive list; the exemption never waives the electrical permit). 95% · information bulletin (P/GI 2023-027)
• Is there a separate electrical permit, or is it combined? Separate — the electrical permit and the building permit are distinct permits from distinct LADBS sections (Electrical Plan Check vs Building Plan Check). The express online PV permit is the electrical permit; a separate building permit 'may be required for the structural support'. 90% · information bulletin (P/GI 2026-003, effective 01-01-2026, revised 06-10-2026)
• Is there a historic-district review? No separate historic-district review, but a form is required: the applicant must sign the 'Advisory Notice for Installing Solar Equipment in Historic Buildings' before permit issuance, and LADBS staff attach it to the permit. The bulletin states expressly: 'No clearance is required from the Department of City Planning.' Separately, zoning-side overlays (HPOZ, Specific Plans, ICOs, CRA) still apply to structures supporting solar panels and associated equipment. 90% · information bulletin (P/GI 2023-027)
• Is a wind or windstorm certification required? No. There is no wind or windstorm certification product in Los Angeles. Wind is handled inside the structural design: plans must include 'the wind load on the vertical projection of the solar panel/collector' in the analysis, and ballasted arrays must comply with SEAOC Report PV2-2012 (prescriptive GCrn or wind-tunnel test). 65% · information bulletin §I.C.5, §VIII
• Is a Specific Use Permit or Council approval ever required? Not for rooftop residential. A Conditional Use Permit from the Department of City Planning is required for ground-mounted solar installed as the main use of a property (an electric generating facility). LADWP Feed-in-Tariff projects run under the FiT Program Master CUP; anything failing its conditions needs a separate CUP. 85% · information bulletin §II
• Is there a system-size cap on residential generation? No cap on residential generation as such, but two thresholds bite. LADBS express/online permitting is limited to 10 kW or less on a 1–2 family rooftop, with a service panel rating not exceeding 225 A; above that, plan check. LADWP net energy metering is limited to systems ≤ 1 MW-AC(CEC); above that the customer goes onto parallel-generation schedule CG-2 or CG-3. 85% · express bulletin + LADWP NEM Guidelines §1.0

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 — LADBS issues permits to an Agent, an Owner, or a Contractor. A contractor needs a current CSLB licence plus a City of Los Angeles Business Tax Registration Certificate. BUT the online express PV permit is restricted: both the PV item and the PV+ESS item are marked '(Available online for Contractors only)'. 85% · information bulletin + department page (https://dbs.lacity.gov/services/contractor-step-by-step)
• Must the contractor be registered with this authority before applying? Yes — a contractor must hold a City of Los Angeles Business Tax Registration Certificate (BTRC) in addition to the state CSLB licence, and must present the licence/pocket ID and BTRC (or a newly paid receipt) at permit issuance. 75% · department page
• Is a homeowner permitted to self-install and self-permit? Yes — owner-builder permits are available (LADBS publishes an Owner-Builder Permits notice and declaration), and LADWP's NEM Guidelines state 'Systems may be self-installed by the customer or installed by a licensed contractor/installer.' Homeowners may apply for single-family e-permits of all types. The PV-specific express online route, however, is contractors-only. 80% · department form + utility guidelines

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? Express online route (≤10 kW, 1–2 family rooftop): no plan submittal — the applicant enters the system data online and 'the installation shall meet the approved plans generated through the online system'. Counter/plan-check route: completed LADBS Solar PV Standard Plan and related specifications; roof plan showing module and anchor layout plus rafter layout; solar panels and method of attachment with installation details; dimensions/size/location of supports relative to property lines and adjacent buildings; sealing of roof penetrations; substantiating design calculations (including wind load on the vertical projection of the panel); equipment cut sheets; and, for historic buildings, the signed 'Advisory Notice for Installing Solar Equipment in Historic Buildings'. ESS adds LAFD Fire Plan Check submittal. 88% · information bulletin (P/GI 2023-027) + express bulletin
• How many copies, and in what format? Fully electronic. Express permits are 'issued only online at https://dbs.lacity.gov/' (PermitLA); plan-check submittals go through ePlanLA, LADBS's electronic plan review system. No paper copy count is published for either route. 80% · department page + express bulletin
• Is a site plan required, and what must it show? Yes. A roof plan is required showing the module and anchor layout AND the roof rafter layout; plans must also show dimensions, size and location of the supporting structure(s) relative to property lines and adjacent buildings, and sealing of roof penetrations. For the fire side the roof plan must show the roof access point, the code-compliant access pathways, the PV system fire classification, and the locations of all required labels and markings. The rapid-shutdown initiation device location must be shown on the site plan. 88% · information bulletin + LADBS Solar PV Standard Plan
• Is a one-line / three-line diagram required? Yes — a complete single-line diagram of the PV system and the utility interconnect is required. The LADBS Solar PV Standard Plan is itself built around single-line diagrams; LADWP may additionally require a single-line diagram permanently installed at the main service panel. 90% · plan-check correction sheet + standard plan
• Are string and conductor calculations required? Yes. The LADBS Solar PV Standard Plan works through numbered steps for maximum system voltage, source-circuit current, conductor sizing and OCPD sizing, and the values feed directly into the required 690.53/690.54 labels. The correction sheet demands per-string module counts, operating and open-circuit voltages, operating and short-circuit currents for each source circuit, array and sub-array. 85% · LADBS Solar PV Standard Plan (version April 2, 2020)
• Is a structural PE stamp required, and at what threshold? Threshold-based, not universal. No PE stamp where the system meets LADBS's building-permit exemption (Exception 2: flush-mounted on a 1–2 family dwelling, single roofing layer, sound structure, modules parallel to the roof plane, 2"–10" gap, no overhang of ridges/hips/gable ends/eaves, ≤4 psf PV, array ≤ half of total roof area, roof + rafter layout plan provided, manufacturer worksheets/calculator output attached, 5/16" lag screws with 2.5" embedment or manufacturer's fastener whichever is more stringent, structural design per the 2019 California Solar Permitting Guidebook 4th ed. 'Structural Criteria for Residential Rooftop Solar Energy Installations'). Outside that, Building Plan Check applies and substantiating design calculations are required; the Guidebook route LADBS hosts calls for drawings and calculations stamped and signed by a California-licensed civil or structural engineer. Ballasted (unattached) arrays always require an Engineer of Record plus a recorded owner affidavit and a Modification of Building Ordinance form. 85% · information bulletin (P/GI 2023-027) §I.A, §VIII

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? Two LADBS-run platforms: PermitLA (permitla.lacitydbs.org) for express/online permits, and ePlanLA for electronic plan review submittals. LADBS Go is the mobile app for inspection requests and permit lookup. Utility side is separate: LADWP's Solar Automated Meter Spot at www.ladwp.com/nem. 88% · department page
• Can the whole application be completed online? Yes for a qualifying system — express PV and PV+ESS permits are 'issued only online', same visit, with no plan check, for licensed contractors. Non-qualifying projects are also submitted electronically, through ePlanLA. 90% · information bulletin (P/GI 2026-003)
• What does a residential solar permit cost? Electrical permit, itemised: modules $6.00 each, combiner box $6.00 each, inverter by kW band ($8.00 ≤3 kW, $18.00 3.1–5, $27.00 5.1–20, $39.00 20.1–50); microinverters are charged once on the summed kW rating, not per unit. Then a permit issuing fee of $23.00 (where sub-total 1 exceeds $90), plus D.S.C.S. of 3% and a Systems Surcharge of 6%. Worked example — 20 modules with microinverters totalling 8 kW: (20 × $6) + $27 = $147; +$23 issuing = $170; +3% + 6% ≈ $185. A separate valuation-based building permit fee applies when the structural exemption is not met. Whatever the arithmetic, Cal. Gov. Code §66015 caps the residential PV permit at $450 (+$15/kW above 15 kW). 70% · fee schedule (Rev 12/2016) + IB P/EC 2020-006 + Cal. Gov. Code §66015
• How is the fee calculated? Per panel and per component — $6 per module, $6 per combiner box, inverter priced by kW band, microinverters by summed kW; plus a fixed issuing fee and percentage surcharges. Not flat, not valuation-based, not per kW of array. (The building-permit side, when triggered, is valuation-based.) 85% · fee schedule + IB P/EC 2020-006
• Is there a separate plan-check fee? No on the express route — 'Express Permits (No Plan Check Required)', so no plan-check fee arises. Where the system falls outside the express criteria, Building or Electrical Plan Check applies and the building-side plan check is charged off the Building Permit Valuation Table. 62% · information bulletin + fee schedule page

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? Zero for a qualifying system — the express PV permit is issued online with no plan check at all. Systems outside the express criteria go to Counter Plan Check (over-the-counter, if a completed LADBS Solar PV Standard Plan and specifications are supplied) or Regular Plan Check; LADBS publishes no turnaround figure for either. 78% · information bulletin §X.B + express bulletin
• How long is an issued permit valid before it expires? Expires if construction has not started within six months of the issue date; expires two years from the date of issue if construction is not completed. Renewal required to continue. 70% · department publication (undated)
• Which utility handles interconnection here? Los Angeles Department of Water and Power (LADWP) — the City's own municipally owned utility. Not SCE, not PG&E. Note that pockets served by SCE exist near city boundaries, so confirm per address. 92% · information bulletin + LADWP NEM Guidelines
• Where does the utility sit in the sequence? Parallel, with a hard utility gate at the end. The customer opens a NEM application on LADWP's Solar Automated Meter Spot site to obtain an Interconnection Work Request number; LADBS permits and inspects independently ('LADBS will not refer plan check or permit applicants to LADWP'); then, 'once the Solar PV System is constructed and the permit has been finalized, LADBS will release the Project to LADWP for solar inspection and meter installation.' The system may not be operated — and may be physically locked — until all inspections are complete and a net meter is installed. 88% · utility NEM guidelines + LADBS bulletin

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? Unresolved between two of LADBS's own documents. LADBS's current solar bulletin says electrical wiring 'shall comply with the applicable provisions of the 2023 Los Angeles Electrical Code (2023 LAEC)' — that is the 2022 CEC, i.e. NEC 2020. But LADBS moved to its 2026 code cycle on 1 Jan 2026 (its current bulletins reference the '2026 LABC' and '2026 LARC'), which would put the electrical code on the 2025 CEC, i.e. NEC 2023. The solar bulletin has not been reissued for the 2026 cycle. 52% · information bulletin §X.D (conflicts with 2026-cycle bulletins)
• Which building code edition is in force? 2026 Los Angeles Building Code / 2026 Los Angeles Residential Code, effective 1 Jan 2026. One- and two-family dwellings three stories or less comply with the 2026 LARC; over three stories, the 2026 LABC. (The state edition underneath is the 2025 California Building Standards Code.) 85% · information bulletin (P/GI 2026-009)
• Are there local amendments to any of the above? Yes — extensively. Los Angeles adopts the California codes with its own amendments (Los Angeles Building/Residential/Electrical/Fire Codes as LAMC Chapter IX), and the solar-specific local layer is real: LAMC 91.1301 and 93.690 are the bulletin's reference sections; LAFD Requirement No. 96 imposes LA-specific access, ventilation and marking rules; LAMC 12.21.1B3(c) and 12.22.C.20(f) govern solar height projections and ground-mount height; ballasted arrays require an LA-specific recorded affidavit and a Modification of Building Ordinance form; and LAMC 93.0218(a) sets LA's own solar permit fee table. 88% · information bulletin reference block + LAFD Requirement 96
• What is the installation judged against? The approved plans first, then: the California Building Code and Residential Code as amended by the City of Los Angeles; the California Electrical Code as amended by the City; roof access per LABC §3111.3.2 or LARC §R324.4 with pathways per LARC R324.1–R324.7.3 or LABC 3111.1–3111.3.5.1; roof access points, paths and clearances per the CFC as amended by the City; and, for one- and two-family dwellings, LAFD Requirement No. 96 as set out in the Fire Department Reference Requirements. The California Solar Permitting Guidebook is named as the governing practice document. 90% · information bulletin §XII

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? Sloped roofs (>2:12) on 1–2 family dwellings: 3-foot-wide clear access pathways to the ridge on both sides of each roof slope where panels are located, the 3' measured from the load-bearing (exterior) wall to the panel and excluding eaves and overhangs; panels no closer than 18" to a hip or valley where placed on both sides of it (may abut where on one side only, hip/valley of equal length). Ridge setback: panels no higher than 3 feet below the ridge, reduced to 18 inches below the ridge if panels are installed on only one side of the ridge. Flat roofs (<2:12): 3-foot-wide clear pathway around the perimeter edges. Dead ends over 25 feet must continue to the next pathway; travel distance must never exceed 150 feet before reaching another required pathway; arrays no greater than 150' × 150' in either axis. Roof access points must not require ground ladders over windows or doors and must be at load-bearing walls clear of tree limbs, wires and signs. Exempt: detached non-habitable Group U structures (parking shade structures, private garages, carports, solar trellises). Ground-mounted arrays: setbacks do not apply, but a clear brush-free area of 10 feet is required. 92% · LAFD Fire Department Reference Requirements (12/12/2014) + FPB Requirement No. 96 (12/14)

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 per CEC 690.12. The rapid shutdown initiation device must be labelled per CEC 690.56(C), and its location must be shown on the site plan drawing. The initiation device may be the inverter output or input circuit disconnecting means, the service main disconnect, or a separate device as approved by the AHJ; it must be identified for the purpose, suitable for its environment, and listed as a disconnecting means, and a single initiation device must operate all disconnecting means needed for 690.12 compliance. CEC 705.12 additionally requires a permanent plaque or directory denoting all electric power sources on or in the premises AND the rapid shutdown initiation device. 78% · LADBS Solar PV Standard Plan step 19

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? At the service equipment specifically: (1) LAFD 'SOLAR DISCONNECT' at the main service disconnect; (2) CEC 705.12 permanent plaque or directory denoting all electric power sources on or in the premises and the rapid shutdown initiation device; (3) WARNING / DUAL POWER SOURCES / SECOND SOURCE IS PHOTOVOLTAIC SYSTEM with rated AC output current and normal operating voltage (CEC 690.54 & 705.12(D)(3)); (4) WARNING — INVERTER OUTPUT CONNECTION; DO NOT RELOCATE THIS OVERCURRENT DEVICE (705.12(D)(2)(3)(b), omitted if the panelboard is rated not less than the sum of all supplying overcurrent devices); (5) WARNING — THIS EQUIPMENT FED BY MULTIPLE SOURCES. TOTAL RATING OF ALL OVERCURRENT DEVICES, EXCLUDING MAIN SUPPLY OVERCURRENT DEVICE, SHALL NOT EXCEED AMPACITY OF BUSBAR (705.12(D)(2)(3)(c), on a new load centre). Elsewhere on the system: PV SYSTEM AC DISCONNECT rating placard (690.54); PV SYSTEM DC DISCONNECT placard with rated max power-point current and voltage, maximum circuit current and maximum system voltage (690.53); 'WARNING: PHOTOVOLTAIC POWER SOURCE' on DC conduit and enclosures (690.31(G)(3) and LAFD); PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN (690.56(C)); ELECTRIC SHOCK HAZARD — DO NOT TOUCH TERMINALS… (690.17(E)); ground-fault and ungrounded-DC warnings where applicable (690.5(C), 690.35(F)). 88% · LADBS Solar PV Standard Plan 'Markings' page + LAFD Requirement 96
• Does the authority specify placard wording of its own? Yes — LAFD specifies exact wording of its own, beyond the CEC labels. Two placards with mandated verbiage: 'SOLAR DISCONNECT' (at the main service disconnect) and 'WARNING: PHOTOVOLTAIC POWER SOURCE' (on DC conduit, raceways, enclosures, cable assemblies, DC combiners and junction boxes). 92% · LAFD FPB Requirement No. 96 §5
• Does it specify letter height, colour or material? Yes, for the LAFD placards — Format: white lettering on a red background; minimum 3/8 inch letter height; all letters capitalised; Arial or similar font, non-bold. Material: reflective, weather-resistant material suitable for the environment, using UL 969 as the weather-rating standard; durable adhesive materials meet this requirement. The same format and material spec applies to both 'SOLAR DISCONNECT' and 'WARNING: PHOTOVOLTAIC POWER SOURCE'. For the CEC labels, LADBS's Standard Plan adds: ANSI Z535.4 guides the design of safety signs; a phenolic plaque with contrasting text and background meets the intent of the code for permanency; 'No type size is specified, but 20 point (3/8") should be considered the minimum.' 92% · LAFD Reference Requirements §4 + LADBS Solar PV Standard Plan
• Is a site plan / facility map placard required, and what must it show? Two distinct things. (a) Code-side: CEC 705.12 requires a permanent plaque or directory denoting all electric power sources on or in the premises and the rapid shutdown initiation device. (b) Utility-side: LADWP may require, at the main service panel location, a single-line diagram AND a plot plan showing the location of the energy source AC disconnect(s) — both to be approved by LADWP and installed by the customer as LADWP directs. On the plan-submittal side (not a placard), the roof plan must show roof layout, panels, roof access point, code-compliant access pathways, PV system fire classification and the locations of all required labels and markings. 78% · LADWP Electric Service Requirements 2024 Edition, Design Guide §8 (dated 05-02-24)
• Does the UTILITY specify placards beyond the AHJ's? Yes — LADWP requires signs beyond the AHJ's, under 'SIGNS AND LABELS' in the Electric Service Requirements: (a) a sign at the main service (meter) panel location identifying each energy source AC disconnect location; (b) a sign at each LADWP-specified energy source AC disconnect identifying the main service location; (c) a sign on each personnel entrance door for Customer Stations; (d) any other signs deemed necessary by LADWP to provide energy source AC disconnect location information. The customer provides and installs them 'as directed by the Department'. LADWP also supplies a sign for the customer to have installed on each LADWP-owned pad-mount transformer and Customer Station connected to the parallel-generation system. 88% · LADWP Electric Service Requirements 2024, Design Guide §8-M
• Where must the labels be placed? 'SOLAR DISCONNECT': at the main service disconnect — the marking may be placed within the main service disconnect, but must be placed on the outside cover if the main service disconnect is operable with the service panel closed. (Commercial: adjacent to the main service disconnect, clearly visible from where the disconnect is operated.) 'WARNING: PHOTOVOLTAIC POWER SOURCE': on interior and exterior DC conduit, raceways, enclosures and cable assemblies every 10 feet, within 1 foot of turns or bends, within 1 foot above and below penetrations of roof/ceiling assemblies, walls or barriers, and on all DC combiners and junction boxes. Markings must be readily visible from any direction of approach. Overhead/trellis arrays carry the same marking, labelling and warning signs as roof-mounted systems. CEC labels sit at the PV DC disconnecting means (690.53), at an accessible location at the PV AC disconnecting means (690.54), at the rapid shutdown initiation device (690.56(C)) and at the service equipment/load centre (705.12). LADWP signs sit at the main service (meter) panel and at each energy source AC disconnect. 90% · LAFD Requirement 96 §5 + LADBS Standard Plan + LADWP ESR §8-M

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? AHJ rule (LAFD, 1–2 family): 'The main electrical meter, the photovoltaic (PV) disconnect, and the inverter shall be in the same location within sight of each other.' Where the inverter is inside a garage on a single-family dwelling or duplex, there must be a DC disconnect on the exterior of the building AND an AC disconnect on the exterior, and all disconnects must be placed adjacent to the main panel. Raceways running inside a concealed attic, floor or wall space must have a means of disconnect prior to entering the structure. Utility rule (LADWP): a dedicated AC utility disconnect may NOT be required for inverter-based PV up to and including 30 kW AC per premises, provided the supply voltage is under 600 V, the service main disconnect controls all power flow registered by the meter, sources are not connected through a line-side tap, the combination meter panel is self-contained (residential class 320 or less), there are no more than six self-contained meters per premises, and the service is not fed from the 34.5 kV sub-transmission system. Where a disconnect is required (≤100 kW aggregate), performance meters and AC disconnect switches must be readily accessible and located on the exterior wall of a building or other approved permanent structure, or in an approved meter room on the ground floor or first basement parking level. 88% · LAFD Reference Requirements item 1 + LAFD Req 96 §10–11 + LADWP ESR 2024 §8-L, §8-2
• Must equipment be on a specific approved list? Yes — 'The solar photovoltaic system shall be tested and listed by a City of Los Angeles recognized electrical testing laboratory', and LADBS publishes the roster of recognised laboratories. For the PV+ESS express route the ESS, the associated microgrid interconnect device (MID) and all associated equipment must be listed or certified by a Department-approved Electrical Testing Agency. Ballasted-array sliding tests must be done by an LA City approved test agency. 90% · information bulletin §X.C + express bulletin
• Are batteries permitted, and under what conditions? Yes, permitted. Express online route (contractors only) for a PV+ESS on a 1- or 2-family dwelling requires all of: ESS is AC-coupled and not exceeding 10 kW AC; connected to the load side of a single-phase 120/240 V end-fed or centre-fed service panel rated ≤225 A; the self-contained ESS, its microgrid interconnect device and all associated equipment listed or certified by a Department-approved Electrical Testing Agency; the PV system meets all the PV express criteria; no hybrid systems, BIPV or PV roll roofing; compliance with Article 705.12(B)(2)(3)(a), (b) or (c); modules roof-top mounted, crystalline or multi-crystalline; four or fewer strings, with or without one combiner box; AND the ESS submitted to the Fire Department for Fire Plan Check approval and permit. Note also that the plain-PV express criteria explicitly exclude systems with battery storage, so a battery moves the job onto the ESS route. LADWP requires preliminary review and inspection by an LADWP Distribution Engineer and ESR for all grid-interconnected energy storage systems. 90% · information bulletin (P/GI 2026-003) item V-16 + LADWP NEM Guidelines
• Is there a separate ESS permit or inspection? Yes — 'The ESS shall be submitted to the Fire Department for Fire Plan Check approval and permit.' That is an LAFD permit separate from the LADBS electrical permit. LADWP adds its own gate: all grid-interconnected ESS require preliminary review and inspection by an LADWP Distribution Engineer and ESR. 90% · information bulletin (P/GI 2026-003) item V-16(j)
• Is a ground mount treated as a structure? Yes. Ground-mounted panels are treated as a structure: they must conform to Zoning Code requirements as for a building or structure; where the height exceeds that permitted for a fence wall under LAMC 12.22.C.20(f), LADBS evaluates whether the proposed height is necessary for proper operation; panels installed in yards are evaluated by LAFD to ensure they do not impede life safety; structural support must comply with the applicable fire-rating classification of the LABC; ground-mounted arrays comply with LABC 3111.1–3111.3 or LARC R324.1–R324.7.3. Setback requirements do not apply to free-standing ground-mounted arrays, but a clear brush-free area of 10 feet is required. In the Grading Hillside Area (BOE Basic Grid Map A-13372) a grading pre-inspection is required. A CUP is needed where the ground mount is the main use of the property. 90% · information bulletin §II, §III, §VII, §XII
• Is there a local rule on service upgrades or busbar sizing? Yes, as express-route eligibility limits rather than as a standalone rule: the service panel rating must not exceed 225 A; AC must be 120/240 V single phase; no GFCI or AFCI overcurrent devices in the inverter's AC output; DC arc-fault protection per Article 690.11. For the PV+ESS route the connection must be to the load side of a single-phase 120/240 V end-fed or centre-fed panel rated ≤225 A and must comply with Article 705.12(B)(2)(3)(a), (b) or (c). Busbar loading is worked through the 705.12(D) table in the LADBS Standard Plan; where the main breaker is reduced, an Article 220 load calculation must accompany the Standard Plan. 85% · express bulletin + LADBS Solar PV Standard Plan
• Is a specific mounting system or attachment spacing required? Yes — prescriptive attachment rules, quoted: maximum spacing for supports 48" on centre; racking anchored to solid wood roof rafters or solid wood blocking with a minimum of one 5/16" diameter lag screw embedded at least 2½", or as recommended by the manufacturer, whichever is more stringent; maximum concentrated load imposed by any support on the roof structure 60 lb (0.18 kN); device installed within 24" of the roof below (Exception 1) or with a 2"–10" gap between module underside and roof surface (Exception 2); combined module and support weight ≤4 psf for PV; array ≤ half the total roof area; modules must not overhang ridges, hips, gable ends or eaves; roof must have only one layer of roofing material. Roof penetrations must be flashed and sealed by approved methods. 92% · information bulletin §I.A, §XII.B

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 or Phone — request online through LADBS's inspection request service or the LADBS Go mobile app, or by calling 311 within LA County ((866) 452-2489 / (866) 4LA-CITY), (213) 473-3231 from outside LA County, or (888) LA4Build. A Virtual Inspection programme (real-time video) also exists for eligible inspection types, requiring a signed agreement form emailed in advance. 88% · department page + FAQ node 2467 + Homeowner's Guide
• How much notice is required? At least 24 hours in advance. LADBS adds: 'Occasionally office workloads delay inspections an additional 24 hours.' 68% · department publication (undated)

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 for one- and two-family dwellings — the LADBS field inspector performs the inspection and, in the same visit, 'shall verify the requirements of the Los Angeles Fire Department Requirement No. 96 as outlined in the Fire Department Reference Requirements for Rooftop Photovoltaic (PV) Systems on One- and Two-Family Dwellings.' Solar systems in other occupancies are inspected by LAFD. Note this is not the only inspection: LADWP performs its own separate solar inspection, plus an ESR inspection for systems ≥10 kW AC and some special cases below that. 92% · information bulletin §XII.A + LADWP NEM Guidelines §1.3.2
• If delegated, to whom? Partially delegated / split: LAFD inspects solar systems in occupancies other than one- and two-family dwellings, and holds the fire permit and inspection for any ESS. LADWP performs the solar inspection and net-meter installation for every interconnected system, plus an ESR inspection for systems ≥10 kW AC. LADBS retains the 1–2 family PV inspection itself. 88% · information bulletin §XII.A.5 + LADWP NEM Guidelines

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. All applicable permits obtained (no inspection before then). 2. LADBS field inspection — approved plans and technical specifications available on site, a person familiar with the installation present to answer questions and provide access including a ladder (Cal. Code Regs. Title 8 compliant); inspector verifies the system is installed per approved plans and specifications and meets all applicable codes, and verifies LAFD Requirement No. 96. 3. Permit finalised — LADBS releases the project to LADWP. 4. LADWP ESR inspection (systems ≥10 kW AC and some special cases below). 5. LADWP solar inspection + net meter installation, coordinated by the LADWP Connection Center ((213) 367-6937). 6. Interconnection agreement signed where applicable; the system is unlocked by the LADWP net-meter installer and placed in service. 88% · information bulletin §XII.A + LADWP NEM Guidelines §1.3

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 — LADBS hosts and cross-references 'PV Toolkit Document #7, Inspection Guide for PV Systems in One- and Two-Family Dwellings', a two-section checklist (a one-page field inspection guide plus a comprehensive reference). The bulletin names it as the governing electrical inspection reference for small rooftop PV on one- and two-family dwellings. There is also a Supplemental Correction Sheet for Solar Photovoltaic Systems (electrical) for plan check. 82% · inspection checklist hosted by LADBS + IB §XII.C
• What must be on site at inspection? All approved plans and related technical specifications must be available on site at the time of inspection. All applicable permits must be obtained prior to inspection. A person familiar with the installation must be on site to answer questions and provide access — including a ladder, complying with Cal. Code Regs. Title 8 — for inspection of all components. The signed Building Card (B-8) and the approved plans must be left on site: 'an inspection cannot be made without them.' 88% · information bulletin §XII.A + Homeowner's Guide
• Does the inspector verify labels and listings? Yes. LADBS's bulletin requires the field inspector to verify the system is installed per approved plans and specifications and meets all applicable codes, and to verify LAFD Requirement No. 96. The inspection guide LADBS hosts is explicit on both points: item 17, 'PV system markings, labels and signs according to the approved plan'; item 10, 'Equipment installed, listed and labeled according to the approved plan (e.g., PV modules, DC/DC converters, combiners, inverters, disconnects, load centers and electrical service equipment)'; item 11, 'For grid-connected systems, inverter is marked "utility interactive"'. 85% · PV Toolkit Document #7 hosted by LADBS + IB §XII.A.4

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 — the inspector signs the Building Card (B-8) when the work has been inspected and approved. A Certificate of Occupancy is not issued for all work: 'In some cases, the Department will send you a Certificate of Occupancy when the inspector has signed the final approval. Not all construction work receives a Certificate of Occupancy.' A rooftop PV retrofit would normally get the signed final, not a CO. Separately, the finalised permit is what LADBS uses to release the project to LADWP. 65% · department publication (undated) + LADWP NEM Guidelines §1.3.1
• Who notifies the utility for PTO? AHJ — 'Once the Solar PV System is constructed and the permit has been finalized, City of Los Angeles Department of Building and Safety (LADBS) will release the Project to LADWP for solar inspection and meter installation.' The installer/customer's own duty is upstream: opening the NEM application on LADWP's Solar Automated Meter Spot site to obtain the Interconnection Work Request number, and signing the interconnection agreement where applicable. LADBS states separately that it 'will not refer plan check or permit applicants to LADWP' — obtaining LADWP's approvals is the applicant's responsibility. 85% · LADWP NEM Guidelines §1.3.1 + LADBS IB §X.E.3
• Is there a re-inspection fee? $90.00 — 'Extra Trip, each' on the LADBS Electrical Permits Fee Schedule. LADBS runs an online 'Pay Extra Trip Inspection Fee' service. (Special inspections in an existing building are charged at $104.00/hr, a different item.) 62% · fee schedule (Rev 12/2016) + LADBS online services
• How are corrections issued and cleared? The inspector leaves a pink correction notice (Form G-49) listing the corrections; the permit holder makes all the corrections on the notice and calls for inspection again. On a virtual inspection the inspector either approves or 'issues a correction notice via email', and re-inspections of corrections are handled through the same programme. Disputes go to the Satellite Office supervisor, who sits in the same office as the inspector and will meet on site. 70% · department publication (undated) + Virtual Inspection page