LA County to Require Rental Units Stay at 82°F or Below Starting 2027

Effective Jan. 1, 2027, Los Angeles County will treat indoor cooling as a habitability requirement, mandating that rental units in unincorporated neighborhoods stay at 82 °F or cooler. The rule does not extend to cities such as Santa Monica, Pasadena, Inglewood or Glendale, so many renters remain unprotected. Landlords are encouraged to first apply low-cost measures like better insulation, window coverings or fans, but may need to install full-scale air-conditioning if those steps fail.

The county’s health department warns that implementing the standard will be costly, and tenants are likely to bear any increase in electric bills, raising affordability concerns for low-income households. Tenants can file complaints through the Rental Housing Habitability Program, though advocates caution that the process may be lengthy and could require legal action. The policy reflects growing worries about Southern California’s rising, more humid heat waves and their health impacts.