Solar Panel Rules in San Francisco, CA (2026)
Solar panel installation rules, mandate status, HOA restrictions, and permit process for San Francisco, CA.
San Francisco, CA is subject to a solar installation mandate for new construction. Solar panels are a permitted use on residential and commercial properties subject to standard building permit requirements. Property owners in San Francisco must obtain a permit before installing solar panels. HOA restrictions on solar are limited by state law. San Francisco offers streamlined permit review for residential solar installations. Below you will find the current solar mandate status, HOA rules, permit process, and any historic district restrictions that apply to solar installations in San Francisco.
Solar Mandate Status
Solar Mandate in San Francisco: A solar installation mandate applies in San Francisco. 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.
HOA Restrictions
HOA Restrictions on Solar in San Francisco: 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.
Permit Process
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
Historic District Considerations
Historic District Considerations in San Francisco: 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 If your property is located in a historic district, contact the San Francisco Planning Department before designing your solar system — placement restrictions may affect system output.
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 Building Department — Solar Panel Permits. Last verified April 5, 2026. View source