ADU CITIES Contractor Directory

O'sullivan Construction LLC

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

☎ Call (626) 979-4536Verify this license at CSLB
CSLB license#964338
ClassificationsB — General Building
Office of record4104 W 147TH Street
Lawndale, CA 90260
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 979-4536
Contractor bond$25,000 — Business Alliance Insurance Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Amguard Insurance Company
Business typeLimited Liability
License issuedAugust 9, 2011
License expiresApril 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.