ADU CITIES Contractor Directory

Mas Design Builders

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license#1092659
ClassificationsB — General Building
Office of record880 W 1ST Street #515
Los Angeles, CA 90012
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(213) 235-8949
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Workers' Compensation Insurance — State Compensation Insurance Fund
Business typeCorporation
License issuedJune 13, 2022
License expiresJune 30, 2028

Is this your business? Claim this listing to enhance it with your website, photos, and project details.

Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.