ADU Contractors in Riverside County, CA
8,542 active, license-verified contractors with an office of record in Riverside County — general builders (A & B) and the licensed trades that build ADUs (C-10 electrical, C-36 plumbing, C-5 framing). Pick your city, or search directly.
Mars Construction Industries Corp
ADU Cities' own design-build team
CSLB #1138550 · A · B · C-36 · C-20
Building ADUs across Los Angeles, Orange, Riverside, San Bernardino, San Diego & Ventura counties
Riverside County runs two ADU markets in one: the fast-growing west — Corona, Temecula, Murrieta, Lake Elsinore — and the Coachella Valley desert cities from Palm Springs to Indio. This directory lists 8,542 active, license-verified contractors with an office of record in the county — general builders (A and B) plus the licensed trades ADU projects use (C-10 electrical, C-36 plumbing, C-5 framing).
Desert builds bring their own questions — heat, energy code, and utility capacity — while the western cities move at suburban speed. Either way, the drill is the same: confirm the license is active at CSLB, and confirm your city's current ADU standards before you commit.