ADU Contractors in Northridge, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Northridge, 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
428 license-verified contractors based in Northridge — page 9 of 9
Vagan Nagapetian
BValadez Electric Inc
C-10Valley Medic Plumbing
C-20C-36Valley Service Corp
AC-36Valley Sewer
Carbajal Gilbert
AC-36Valley Tile & Plumbing
C-36C-54C-6Valleys Top Plumbing
C-36Vanmali Atul
BVasquez Builders Inc
BWeinstock Alan
BC-36Western Security
C-10C-7Western States Inc
BWestside Construction Company
BWilliams John Monroe III
BWilson John Company
BWold Steve
BWoodmansee Construction
BWu Nick Zhi
BWyatt W Underwood & Associates LLC
ABC-8D-12D-34X L Construction
BY S C Construction Inc
BC-10C-36Yarden Builders Inc
BYousem Plumbing And Rooter Co
Rns Enterprises Inc
C-36Z Plus Construction Corporation
BZakeri Ramin
C-10Zero Resistance
C-10Zulay Construction & Design
BData source: CSLB public records as of November 6, 2026 · Verify any license at CSLB