Safe Maximum Indoor Temperature Thresholds
for Residential Dwelling Units
A proposed ordinance is expected to go before the Board of Supervisors in early August, which, if approved by the Board, would require all rental dwellings in unincorporated Los Angeles County to maintain safe indoor temperatures—no higher than 82°F. This measure aims to protect tenants during extreme heat. If approved, the ordinance would go into effect 30 days after Board adoption, enforcement would begin in January 2027, providing landlords with time to prepare.
Tenants are allowed to install their own portable cooling devices—such as plug-in air conditioners or fans—without being evicted, charged extra, or punished. Tenants must notify their landlord in writing, at least five days before installing the unit, so their landlord is aware of the additional electrical demand. Landlords may not pass along the cost of installing a portable cooling device to tenants, but they may be eligible for other capital improvements required to comply.
While the ordinance doesn’t require landlords to upgrade electrical systems, it’s strongly recommended that units be equipped to safely support standard cooling devices. Ensuring electrical systems are up to code and able to handle plug-in air conditioners or fans can help avoid safety issues and make compliance easier for everyone. Tenants can add a portable cooling device or utilize other non-mechanical cooling methods at their own cost, and landlords cannot raise the rent or charge extra fees under the new rule.