California / Santa Clara County
Solar Permit in Santa Clara County, California
Permit required
Yes, a permit is required
Before installing a rooftop solar energy system on a home in the unincorporated county, at any system size. A system of 10 kW AC or less on a one- or two-family dwelling that meets the county's eligibility checklist is routed through expedited, nondiscretionary review rather than standard plan check.
Issued bySanta Clara County Department of Planning and Development, Development Services (Building Inspection Office)
By Mario Bailey, verified against official sources
Quick answer
A permit is required for every residential rooftop solar installation in unincorporated Santa Clara County; system size only decides which review path the application takes. Division C3, Chapter IV of the County Ordinance Code sets up an expedited, streamlined permitting process for small residential rooftop solar energy systems under Government Code Section 65850.5 and the Solar Rights Act as amended by AB 2188, and it applies to the permitting of all such systems in the unincorporated area of the county. A system qualifies for that faster path when it is no larger than 10 kilowatts AC (or 30 kilowatts thermal), sits on a legally established single-family or duplex dwelling, and stays within the maximum building height allowed by the Zoning Ordinance; a system above those limits is still permitted, just through ordinary plan check. Complete applications meeting the county's published checklists and standard plans are approved administratively as nondiscretionary permits, Section C3-48 limits the county to a single inspection that may be consolidated between the Building Office and the Fire Marshal, and county approval does not authorize grid interconnection, which must be obtained separately from the local utility provider.
Who is pulling this permit?
Apply yourself
Hire it out
Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your California Contractors State License Board (CSLB) license active, and under which business name? Verify it on www.cslb.ca.gov.
California's owner-builder rule (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5) sets what you may do on your own home without hiring anyone. Read the statute.
When a permit is usually needed
Before installing a rooftop solar energy system on a home in the unincorporated county, at any system size. A system of 10 kW AC or less on a one- or two-family dwelling that meets the county's eligibility checklist is routed through expedited, nondiscretionary review rather than standard plan check.
What a solar permit costs in Santa Clara County
How Santa Clara County compares in California
No California jurisdiction we have verified sets a size threshold for this permit, so what actually differs between them is the fee.
| Jurisdiction | Permit needed? | Typical fee |
|---|---|---|
| Alameda County | Permit required | ...less than 35 Kva per system (when no plan review is required) $280.00 for... |
| Contra Costa County | Permit required | ...photovoltaic systems 15 kW or less: Building Permit/inspection $86.00 per... |
| Fresno County | Permit required | See schedule |
| Los Angeles | Permit required | ...per-component fees per the LADBS Electrical Permit Fee Schedule: $6 per... |
| Los Angeles County | Permit required | ...for small residential rooftop photovoltaic systems shall not exceed $500... |
| Orange County | Permit required | Solar Permits, Roof-Mounted (includes County Standard Plan): $428 for FY... |
| Santa Clara Countythis page | Permit required | ...the Board adopted on April 17, 2018, lists those amounts as $375.35 up to... |
How to apply in Santa Clara County
In Santa Clara County, a rooftop solar PV permit application is a combined structural and electrical plan set: a site plan and roof framing details proving the array's mounting can carry its added loads, plus a one line electrical diagram covering listed modules and inverters, disconnects, and the rapid shutdown design. Utility interconnection is a separate approval that runs in parallel with the permit.
What most solar permit applications include:
- Both a building permit and a separate electrical permit are required, since the array must be designed and installed to the residential code's solar provisions and to the National Electrical Code (IRC R324.3).
- For Santa Clara County, the plan set identifies listed equipment: PV modules listed to UL 1703 (or both UL 61730-1 and UL 61730-2), and inverters listed to UL 1741, with grid-tied inverters listed for utility interaction (IRC R324.3.1).
- Structural drawings show that the roof framing is designed to structurally support the array and withstand the gravity loads it adds (IRC R324.4.1).
- For Santa Clara County, the site plan lays out roof access pathways at least 36 inches wide, plus a ridge setback sized to how much of the roof the array covers, so firefighters retain pathways and ventilation access (IRC R324.6.1, IRC R324.6.2).
- For Santa Clara County, the one line electrical diagram shows the rapid shutdown method and the location of its single initiation device, since one control point must bring all system conductors down to safe levels (NEC 690.12, NEC 690.56(C)).
- Interconnecting the array to the utility grid at a defined point of connection is a separate application process from the local building or electrical permit and must be approved before the system can operate (NEC 705.12).
- Some permitting offices route applications through SolarAPP+, an automated review platform that checks the plan set against code requirements and issues eligible permits instantly (DOE SolarAPP+).
General submittal guidance from IRC 2021 R324 (Solar Energy Systems) and NEC 2020 Article 690 (Solar Photovoltaic Systems) and Article 705 (Interconnected Power Production Sources). Source. Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office) sets the exact checklist for Santa Clara County.
Where to apply in Santa Clara County:
Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office)
- County Government Center, East Wing, 7th Floor, 70 West Hedding Street, San Jose, CA 95110
- Phone: 408-299-5700
Solar Permit in Santa Clara County compared with nearby California localities
| Locality | Permit needed? | Threshold | What each California schedule says | Verified |
|---|---|---|---|---|
| Santa Clara County | Permit required | Any size | ...the fee package the Board adopted on April 17, 2018, lists those amounts as $375.35... | |
| Alameda County | Permit required | Any size | ...energy system less than 35 Kva per system (when no plan review is required) $280.00... | |
| Contra Costa County | Permit required | Any size | ...mount," photovoltaic systems 15 kW or less: Building Permit/inspection $86.00 per... | |
| Fresno County | Permit required | Any size | See schedule | |
| Los Angeles | Permit required | Any size | ...with itemized per-component fees per the LADBS Electrical Permit Fee Schedule: $6... |
Inspections and closing out your permit
In Santa Clara County, inspectors verify the installed array against the approved plans, and some agencies run a rough check of roof attachments and penetrations while they are still exposed before the wiring and roofing close them in. The final inspection confirms rapid shutdown, disconnects, grounding, and required labels are installed correctly, and the system cannot be energized until the utility separately approves interconnection.
- In Santa Clara County: where an agency runs a rough or pre-inspection, it checks the array's roof penetrations while they are still exposed, confirming they are flashed and sealed (IRC R324.4.3).
- In Santa Clara County: the inspector confirms whether rapid shutdown is required, how it is accomplished, and that it is properly identified (NEC 690.12, NEC 690.56(C)).
- In Santa Clara County: pV disconnecting means must be permanently marked and installed where they are readily accessible, which the inspector confirms in the field (NEC 690.13).
- In Santa Clara County: bonding and grounding of the array, including every exposed non current carrying metal part and the grounding electrode system, is checked before sign off (NEC 690.43, NEC 690.47).
- In Santa Clara County: at the service equipment, the inspector looks for the required rapid shutdown placard, a labeled diagram showing the initiation device's location in the specified colors and letter sizes (NEC 690.56(C)).
- In Santa Clara County: utility interconnection is inspected and approved separately from the local building department's sign off, and the system cannot be energized until both approvals are in hand (NEC 705.12).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Santa Clara County permit portal or by phone at 408-299-5700.
Inspection sequence from NEC 2020 Article 690 (690.12 rapid shutdown, 690.13 disconnects, 690.43/690.47 grounding, 690.56 labeling) and IRC 2021 R324.4.3 (roof penetrations). Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Solar Permit checklist for Santa Clara County
- Confirm the requirement. Yes, a permit is required. Usually needed: Before installing a rooftop solar energy system on a home in the unincorporated county, at any system size. A system of 10 kW AC or less on a one- or two-family dwelling that meets the county's eligibility checklist is routed through expedited, nondiscretionary review rather than standard plan check.
- Budget the fee. Solar is charged as an electrical system only permit. The county's Building Section Services Fee Schedule effective July 1, 2025 leaves the Renewable Energy Systems (solar, wind, fuel cell) lines marked "No Change" for all three tiers (up to 15 kv, 15 kv, and each kv over 15), so the previously adopted amounts carry forward; the department's Building Inspection Office fee brochure, from the fee package the Board adopted on April 17, 2018, lists those amounts as $375.35 up to 15 kv, $541.46 at 15 kv and $13.00 for each kv over 15. Confirm the current figure with the Permit Center, since the brochure predates the January 23, 2024 resolution.
- Apply. In Santa Clara County, a rooftop solar PV permit application is a combined structural and electrical plan set: a site plan and roof framing details proving the array's mounting can carry its added loads, plus a one line electrical diagram covering listed modules and inverters, disconnects, and the rapid shutdown design. Utility interconnection is a separate approval that runs in parallel with the permit. Start at the Santa Clara County permit portal.
- Keep the office details handy. Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office). Phone: 408-299-5700. Address: County Government Center, East Wing, 7th Floor, 70 West Hedding Street, San Jose, CA 95110.
- Plan for inspections. In Santa Clara County, inspectors verify the installed array against the approved plans, and some agencies run a rough check of roof attachments and penetrations while they are still exposed before the wiring and roofing close them in. The final inspection confirms rapid shutdown, disconnects, grounding, and required labels are installed correctly, and the system cannot be energized until the utility separately approves interconnection.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a solar permit in Santa Clara County?
- A permit is required for every residential rooftop solar installation in unincorporated Santa Clara County; system size only decides which review path the application takes. Division C3, Chapter IV of the County Ordinance Code sets up an expedited, streamlined permitting process for small residential rooftop solar energy systems under Government Code Section 65850.5 and the Solar Rights Act as amended by AB 2188, and it applies to the permitting of all such systems in the unincorporated area of the county. A system qualifies for that faster path when it is no larger than 10 kilowatts AC (or 30 kilowatts thermal), sits on a legally established single-family or duplex dwelling, and stays within the maximum building height allowed by the Zoning Ordinance; a system above those limits is still permitted, just through ordinary plan check. Complete applications meeting the county's published checklists and standard plans are approved administratively as nondiscretionary permits, Section C3-48 limits the county to a single inspection that may be consolidated between the Building Office and the Fire Marshal, and county approval does not authorize grid interconnection, which must be obtained separately from the local utility provider. Always confirm with the Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office) before starting.
- How much does a solar permit cost in Santa Clara County?
- Solar is charged as an electrical system only permit. The county's Building Section Services Fee Schedule effective July 1, 2025 leaves the Renewable Energy Systems (solar, wind, fuel cell) lines marked "No Change" for all three tiers (up to 15 kv, 15 kv, and each kv over 15), so the previously adopted amounts carry forward; the department's Building Inspection Office fee brochure, from the fee package the Board adopted on April 17, 2018, lists those amounts as $375.35 up to 15 kv, $541.46 at 15 kv and $13.00 for each kv over 15. Confirm the current figure with the Permit Center, since the brochure predates the January 23, 2024 resolution. Contact the office for current amounts.
- Where do you apply for a solar permit in Santa Clara County?
- You can apply through the Santa Clara County permit portal or contact the Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office) directly. The links are listed on this page.
- Can a homeowner pull a solar permit themselves in Santa Clara County?
- Under California law (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5): California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. A homeowner may also improve their own principal residence without a license, as long as the work is done before any sale, they have actually resided there for the 12 months before completion, and they have not used this exemption on more than two structures more than once in any three-year period. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a civil penalty of up to $500. Confirm how Santa Clara County applies this before you apply.
From the Library
What else needs a permit in Santa Clara County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | It depends | deck area, paired with a 30-inch height limit, no attachment to the dwelling, and no required exit door served | Decks are charged by valuation, not by a flat fee |
| Electrical Permit | Permit required | Any size | ...Schedule effective July 1, 2025 the electrical inspection hourly rate is... |
| Fence Permit | It depends | fence height at which the County Residential Code permit exemption stops applying | ...Valuation-Based Fee Schedule, effective July 1, 2025, which begins at a $249.00... |
| HVAC Permit | Permit required | Any size | ...mechanical permit fee and the mechanical inspection hourly rate are both... |
| Patio Permit | It depends | Before building a patio cover, trellis, carport or similar roofed structure over a patio | No patio-specific flat fee is published |
| Plumbing Permit | Permit required | Any size | ...plumbing permit fee and the plumbing inspection hourly rate are both $272.00, and a... |
| Pool Permit | It depends | depth of a prefabricated swimming pool | The county charges single-family residential swimming pools as flat fees |
| Roof Replacement Permit | Permit required | Any size | ...the county's Building Section Services Fee Schedule effective July 1, 2025: $479.20... |
| Shed Permit | It depends | floor area of a one-story detached tool or storage shed | No shed-specific flat fee is published |
Solar Permit in other California localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Santa Clara County documents; the office above sets the local rules.
How this solar permit page for Santa Clara County was verified. 2 official sources: plandev.santaclaracounty.gov, library.municode.com. Last checked by Mario Bailey, not confirmed with Santa Clara County Department of Planning and Development, Development Services (Building Inspection Office). Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Solar Permit requirements across California localities