Santa Rosa, CA Rental Property Rules: Rent Control (2026)

030 fixes the base rent for every mobilehome space at whatever rent was charged on September 1, 1993 (or the last month it was rented before that date); spaces first rented afterward get an owner-set base rent, and parks annexed later use their annexation-date rent. 040(A) lets an owner raise rent by 70 percent of the CPI increase for the San Francisco/Oakland/Hayward area over the prior 12 months ending in August, but never more than 4 percent of the prior rent. For the combined 2023-2024 period the cumulative increase cannot exceed the lesser of (4 percent plus the 2024 CPI-based figure) or 8 percent of the 2022 rent.

Owners may also pass through government-mandated expenses, metered utility costs, and capital improvement or capital replacement costs, each subject to owner notice and a right for mobilehome owners representing 50 percent of a park's spaces (or 50 spaces, whichever is fewer) to petition the Clerk of the Rent Control Program within 30 days to challenge the pass-through before the Arbitrator. 050 caps the resulting rent bump at 10 percent of the current base rent. 070 if maintenance has been substantially reduced or an increase violated the chapter.

The Clerk, who is the Director of Housing and Redevelopment or a designee, administers the program and funds arbitration costs from the rent stabilization administration fee.