
Short-term rental laws in San Francisco, CA
San Francisco caps un-hosted short-term rentals at 90 nights per year, requires the host to be a permanent resident, and mandates registration. The 90-night cap deeply haircuts investor revenue.
The current rules
What San Francisco actually requires
San Francisco limits un-hosted (whole-unit) short-term rentals to 90 nights per year and requires the operator to be a permanent resident registered with the city.
Applying the 90-of-250-night cap haircuts projected revenue to roughly a third of an uncapped year — usually enough to push an investor DSCR below 1.0.
This is a market where the honest answer is often “it doesn’t pencil as a pure STR”; a mid-term-rental pivot is the realistic path.
Does it still pencil?
A $810,000 3BR at 25% down
Revenue cap-adjusted $95,000 → $34,200/yr.
Tight — at this price it falls below typical STR-lender floors. More down, a stronger-revenue property, or a mid-term pivot can fix it.
Run your San Francisco addressFAQ
San Francisco STR-law questions
Is short-term rental legal in San Francisco?
How much does an Airbnb make in San Francisco?
Does San Francisco’s 90-night cap kill my DSCR?
Will the rules in San Francisco change?
Can I get a DSCR loan on an Airbnb with no rental history?
What DSCR do STR lenders require?
How current is this information?
Legality: Short-term-rental rules change frequently and vary by city, county, and HOA. Legality shown reflects publicly available sources as of the date displayed; it is not legal advice or a permitting determination. Confirm current rules, permits, and HOA/condo restrictions with the local jurisdiction before purchasing.
Revenue: Projected revenue is an estimate from comparable listings and is not a forecast of your results. Lenders independently verify income, typically via appraisal (Form 1007/1008) or 12-month statements. This is not a loan decision or offer.
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