BUILDING CODES – Amends existing law to require certain heat detection devices in certain attached garages and to provide an exemption from a requirement of fire sprinklers for certain multiple-family dwellings with fire walls.

This bill requires heat detection devices in attached garages for new single-family homes and small multiple-family dwellings (up to two units) built after July 1, 2026. It also exempts certain multiple-family dwellings with fire walls (extending to the roof without penetrations) from mandatory fire sprinkler systems. The heat detection devices must connect to the home's smoke alarm system. The bill makes technical corrections to Idaho's building code language but does not alter overall safety standards.