Primary-Residence-Only Rule
San Francisco law only lets a Permanent Resident short-term rent the home that is their actual Primary Residence -- investment properties and second homes can never be registered as short-term rentals.
SF STRs Limited to Primary Residence
Significant RestrictionsSan Francisco, CA, Administrative Code § 41A.5(g)(1)
Notwithstanding the restrictions set forth in this Section 41A.5, a Permanent Resident may offer his or her Primary Residence as a Short-Term Residential Rental if: (A) The Permanent Resident occupies the Residential Unit for no less than 275 days out of the calendar year in which the Residential Unit is rented as a Short-Term Residential Rental or, if the Permanent Resident has not ...