Rent regulation & tenants
Rent control / rent stabilization
Local ordinances capping annual rent increases on covered units, typically pre-1995 multifamily stock; bounded statewide by the Costa-Hawkins Act.
Definition
Rent control — often "rent stabilization" — is a local ordinance capping how much an owner may raise rents on covered units each year, typically through an annual general adjustment tied to CPI and administered by a rent board or housing department. A few dozen California jurisdictions run programs, from the long-standing regimes in Los Angeles, San Francisco, Santa Monica, and Berkeley to a wave of post-2016 adopters.
The Costa-Hawkins Rental Housing Act draws the outer boundary: local price caps cannot reach units first occupied after February 1, 1995 (or an earlier local cutoff, such as 1978–79 in Los Angeles and San Francisco), cannot cover separately alienable single-family homes and condos, and cannot defeat vacancy decontrol. AB 1482 layers a looser statewide cap over units local ordinances do not reach, and for HUD-insured projects federal preemption under 24 C.F.R. Part 246 can displace local regulation entirely.
Why it matters in an underwrite
Which regime binds each unit is the first sort on any California rent roll: a rent-controlled unit grows at the ordinance's annual adjustment — frequently below AB 1482's 5% + CPI — until a vacancy resets it to market, so mis-classifying even a handful of units flips a value-add thesis. Registration fees, petition exposure, and stricter local eviction rules ride along with the cap: a rent-control-city underwrite is a package, not one growth-rate cell.
Sources & related guides
See also
See the term in the law itself
Read the controlling text in the Code Library, or ask the AI how it applies to your project.
Last reviewed 2026-07-29. General information, not legal advice.