The City of San Francisco has strict regulations on AirBnB in the city.
The regulations are basically:
- You must be the permanent resident of the unit you wish to rent (spending at least 275 nights a year in the unit),
- You must be registered with the City as a business and as a short-term rental, and
- You may only rent 90 unhosted nights per year.
The penalty for not doing so is at least $484 per day for each dwelling unit in violation.
Note that stays of over 30 days (by the same visitor) are NOT subject to short term rental regulations but could be subject to city rental/tenant protections and rent control provisions. Contact the San Francisco Rent Board for more information.
You can learn more at the official website of the San Francisco Office of Short Term Rentals website here: https://shorttermrentals.sfgov.org/