Ms Design & Construction
Montiel Demolition
BC-21Every contractor below holds an active California license with an office of record in Van Nuys, verified against CSLB public data as of November 6, 2026: general builders — A (General Engineering) and B (General Building), the classifications that can build an ADU — and the licensed trades ADU construction uses, C-10 Electrical, C-36 Plumbing and C-5 Framing & Rough Carpentry. Listings are alphabetical; the featured builder is labeled, never ranked.
ADU rules — setbacks, size limits, parking, and fees — are set by the local jurisdiction and change often. Before you hire, read the ADU permit process guide and the Southern California ADU cost guide, and verify any license free at CSLB.
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
761 license-verified contractors based in Van Nuys — page 11 of 16
Montiel Demolition
BC-21Msa Assets LLC
BKnoff Norman J
BNext Tech Systems Inc
C-10Walk In Tub Central Inc
BAlireza Azimpouran
BOrion G Inc
BC-10C-20Otto Elite Inc
BC-39Out Of The Blue Pools Inc
BP & G Design Group Inc
BData source: CSLB public records as of November 6, 2026 · Verify any license at CSLB