ADU Contractors in Los Angeles, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Los Angeles, 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
4,765 license-verified contractors based in Los Angeles — page 96 of 96
Zarif Talal Ben
ABC-12C-21HAZZavala A Construction Inc
BZdx Industries Inc
ABZelayandia Isaias
C-36Zen Building
BZepeda's General Construction
BZermer Electric
C-10Zhou Bin Zhou
BZilberberg Erez
BZilberberg Yaniv
BZingo Construction
BZoxa Green Building
Zoxa LLC
C-10Zuniga's Plumbing Services Inc
BC-36Zusser Company Inc
ABHAZData source: CSLB public records as of November 6, 2026 · Verify any license at CSLB