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Short-Term Rental Regulations
in Castro Valley, CA

Last verified: March 2026 · Report an update

Zoning & Conditions

All rental housing units, including short-term vacation rentals and individual rooms, must be registered in the County's Rental Housing Registry. Owners must designate a contact representative and update registration annually. Notably, ADUs and JADUs are generally prohibited from being rented for terms of less than 30 days.

How to Obtain a Permit

1) Submit a completed registration form to the County’s Housing & Community Development Department (HCD) in the prescribed format. 2) Pay the annual registration fee and obtain a county business license if required. 3) Designate a Contact Representative and update the registration annually by July 1.

Official Resources

Official Castro Valley STR regulation source

Frequently Asked Questions

Are short-term rentals allowed in Castro Valley, CA?
All rental housing units, including short-term vacation rentals and individual rooms, must be registered in the County's Rental Housing Registry. Owners must designate a contact representative and update registration annually. Notably, ADUs and JADUs are generally prohibited from being rented for terms of less than 30 days.
Is a permit required to operate a short-term rental in Castro Valley?
Yes, a permit is required to operate a short-term rental in Castro Valley. 1) Submit a completed registration form to the County’s Housing & Community Development Department (HCD) in the prescribed format. 2) Pay the annual registration fee and obtain a county business license if required. 3) Designate a Contact Representative and update the registration annually by July 1.
How do I get a short-term rental permit in Castro Valley?
1) Submit a completed registration form to the County’s Housing & Community Development Department (HCD) in the prescribed format. 2) Pay the annual registration fee and obtain a county business license if required. 3) Designate a Contact Representative and update the registration annually by July 1.

Disclaimer

This information is for general reference only and may not reflect the most current regulations. STR regulations change frequently. Always verify requirements with official local government sources before operating a short-term rental.

Last verified: March 2026 · Suggest a correction