Rent Increase Rules in Unincorporated Los Angeles County, California
This page combines the verified California baseline with a separately reviewed Unincorporated Los Angeles County local-rule snapshot.
Statewide baseline
For covered properties, California limits rent increases to 5% plus cost of living, up to 10%. For increases beginning Aug. 1, 2026 through July 31, 2027, the California DOJ publishes regional maximums from 8.1% to 8.8%; a lower local ordinance can control.
State reference: California Civil Code § 1947.12 / Tenant Protection Act
State official source Editorial & verification policyVerified Unincorporated Los Angeles County local-rule snapshot
For covered City of Los Angeles RSO units, LAHD lists a 3% annual allowable increase for 7/1/26–6/30/27, generally usable once every 12 months. RSO coverage generally includes qualifying rental properties first built on or before October 1, 1978, with additional covered replacement-unit categories and property-specific exceptions. Effective February 2, 2026, the ordinary RSO annual adjustment no longer includes an additional utility percentage. Verify the property’s RSO status and any special adjustment before relying on this rate.
Current listed local maximum: 3% · 7/1/26–6/30/27
Published notice baseline: at least 30 days written notice; property/tenancy facts can require additional review.
Local source reviewed: 2026-09-19
Official local-rule sourceCoverage, exemptions, lawful base rent, banking rules, registration, tenancy type, and property-specific facts can still change the result.
Unincorporated Los Angeles County rent increase quick answer
State baseline: For covered properties, California limits rent increases to 5% plus cost of living, up to 10%. For increases beginning Aug. 1, 2026 through July 31, 2027, the California DOJ publishes regional maximums from 8.1% to 8.8%; a lower local ordinance can control.
Local rule: For covered City of Los Angeles RSO units, LAHD lists a 3% annual allowable increase for 7/1/26–6/30/27, generally usable once every 12 months. RSO coverage generally includes qualifying rental properties first built on or before October 1, 1978, with additional covered replacement-unit categories and property-specific exceptions. Effective February 2, 2026, the ordinary RSO annual adjustment no longer includes an additional utility percentage. Verify the property’s RSO status and any special adjustment before relying on this rate.
Last verified: 2026-09-19
Official source: Local source linked above.
Common questions
Does Unincorporated Los Angeles County have separate rent increase rules?
For covered City of Los Angeles RSO units, LAHD lists a 3% annual allowable increase for 7/1/26–6/30/27, generally usable once every 12 months. RSO coverage generally includes qualifying rental properties first built on or before October 1, 1978, with additional covered replacement-unit categories and property-specific exceptions. Effective February 2, 2026, the ordinary RSO annual adjustment no longer includes an additional utility percentage. Verify the property’s RSO status and any special adjustment before relying on this rate.
Where should I start?
Start with the verified California baseline, then check the rules for the property and tenancy type.
Other verified California city guides
Unincorporated Los Angeles County is not the same as the City of Los Angeles
The County RSTPO figures on this page apply to fully covered units in unincorporated Los Angeles County. Incorporated cities can have their own local ordinances. City of Los Angeles RSO properties use the City rules instead. Confirm the property jurisdiction before using a percentage.