ADU CITIES Contractor Directory

Oso Construction Services

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

CSLB license#1139946
ClassificationsB — General Building
Office of record76 Mercantile Way #214
Ladera Ranch, CA 92694
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 379-9279
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedJuly 7, 2025
License expiresJuly 31, 2027

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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.