Can I Build Solar Panels in San Francisco, CA? (2026)
Find out if you can build a solar panels in San Francisco, CA. Rules, permit requirements, costs, and next steps.
Yes, solar panels are permitted in San Francisco, CA. State mandate requires solar on new construction. A permit is required.
Solar panel installation in San Francisco, CA is permitted and, for new construction, often required by state mandate. California Title 24 Part 6 (2022 Building Energy Efficiency Standards) requires solar PV on all new low-rise residential construction (1-3 stories). Requirement effective January 1, 2020 for single-family; 2023 standards expanded requirements. San Francisco also adopted a local solar mandate (Building Code Section 1512.1) in 2016 for new commercial buildings. Residential solar installations require a building/electrical permit from the San Francisco Department of Building Inspection (DBI). The permit process in San Francisco: Expedited permit via SolarAPP+ for standard residential systems under 15kW DC on non-historic, non-complex roofs. Over-the-counter or same-day permit approval. Full plan check required for complex systems, historic properties, or systems over 15kW. SF DBI: https://sfdbi.org/solar
Solar Panels Rules in San Francisco
Solar Panel Rules in San Francisco: Permit required: Yes — all solar installations require a permit. Thresholds: All solar PV and solar thermal systems. Permit fees: $200–$600 — SF offers expedited solar permit. HOA restrictions: California Civil Code Section 714 prohibits HOAs from unreasonably restricting solar installations. SF condo associations may require architectural review but cannot deny code-compliant systems. SF's dense rowhouse and condo stock creates shared-roof considerations.. Historic district note: Properties in SF Historic Districts (Alamo Square, Dolores Heights, Liberty Hill, etc.) require Planning Department review for rooftop solar visible from public right-of-way. Certificate of Appropriateness may be required. SF has numerous historic districts — verify at: https://sfplanning.org/resource/historic-districts. PG&E net metering available. Solar panels not subject to property tax reassessment under California Revenue and Taxation Code Section 73. SF's fog patterns may reduce solar production compared to other California cities — installer should perform solar irradiance study.
Costs & Fees
Solar permit fees in San Francisco: $200–$600 — SF offers expedited solar permit.
Timeline
1-3 business days for standard residential solar under 15kW via SolarAPP+
Next Steps
Next steps for installing solar panels in San Francisco: 1. Get quotes from licensed solar installers familiar with CA requirements. 2. Installer will prepare permit application and system design documents. 3. Permit application submitted to the San Francisco Department of Building Inspection (DBI). 4. Once permit approved, installation begins. Electrical inspection required at completion. 5. Apply for utility interconnection and net metering through your utility provider.
San Francisco Department of Building Inspection (DBI)
Frequently Asked Questions
Can I build an ADU (in-law unit) in San Francisco?
Yes. California state law requires San Francisco to permit ADUs by-right on all residential lots. You can build a detached ADU up to 1,200 sqft, an attached ADU, a garage conversion, or a Junior ADU (JADU) up to 500 sqft within your existing home. No owner-occupancy requirement applies. SF DBI processes ADU permits ministerially within 60 days. The SF Planning ADU Program provides pre-approved plans for common configurations.
What are San Francisco's Airbnb rules?
Short-term rentals in SF require a Certificate of Registration from the Office of Short-Term Rentals ($450/year). Your unit must be your primary residence — you must live there at least 275 days per year. Whole-home (unhosted) rentals are capped at 90 nights per year. Hosted rentals (you're present) have no night cap. Penalties for non-compliance are $484 per day. Register at ostr.sfgov.org.
What zoning system does San Francisco use?
San Francisco uses its Planning Code (not Municipal Code) for zoning. Residential zones are RH (House) and RM (Mixed Residential) — ranging from RH-1 (single-family) to RM-4 (high-density apartments). Neighborhood Commercial Transit (NCT) zones allow retail below residential. The Planning Code emphasizes rear yard preservation — the typical requirement is 25% of lot depth or 15 ft minimum for rear yards in most residential zones.
Do I need a permit to run a business from my home in San Francisco?
Yes. A Home Occupation Permit ($148 fee) is required for any business operated from a residence in San Francisco. Restrictions apply: no clients visiting, no non-resident employees, no external signs, and business use must be secondary to residential use. Violations can result in code enforcement action.
What are the front yard setback requirements in San Francisco?
In RH-1 (single-family) zones, the standard front setback is 15 feet from the front property line. However, SF Planning Code requires that new construction match the prevailing setback of the block face — if neighboring homes have deeper setbacks, yours must match. Side yards are typically 0 feet in SF's characteristic attached rowhouse pattern. Rear yards must be at least 25% of lot depth (minimum 15 ft).
Are solar panels required on new homes in San Francisco?
Yes. California's Title 24 Energy Code (effective 2020 for single-family) requires solar PV on all new low-rise residential construction. San Francisco also adopted its own solar mandate for commercial buildings in 2016. Properties in SF historic districts need Planning Department approval for solar panels visible from the street, but this cannot be denied for code-compliant systems.
How do I find the zoning for my San Francisco property?
Use the SF Planning Department's online map at sfplanning.org/zoning-map. Enter your address to find your parcel's zone designation, height/bulk district, and any overlay districts. You can also look up whether your property is in a historic district or on the list of individually designated landmarks.
Source: San Francisco Department of Building Inspection (DBI) — Building Regulations. Last verified April 5, 2026. View source