Yes, you can build in San Francisco — but SF has some of the most complex zoning in the nation with 90+ zoning districts, height/bulk districts, and special use districts. The city has eliminated single-family-only zoning. ADUs are allowed by right under California state law. Permit timelines can be lengthy for discretionary projects.
Free first report · No signup required · Results in ~20 seconds
ADU Status
Yes — by right under state law
Common Zones
RH-1, RH-2, RH-3, RM, RC, NC
Permit Timeline
6-16 weeks (ADU), months for discretionary
Key Constraint
90+ zoning districts, historic preservation, shadow analysis
142 factors. 20+ government sources. Buildability Score in 20 seconds.
Score My San Francisco Property FreeZoning rules in San Francisco vary by address. Enter your specific property for accurate results. Always verify with the San Francisco planning department before making decisions.