ADU CITIES Contractor Directory

Granahan Construction

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

CSLB license#586710
ClassificationsB — General Building
Office of record3929 Stanford Drive
Oceanside, CA 92056
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(949) 280-6220
Contractor bond$25,000 — Platte River Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedJanuary 24, 1990
License expiresJuly 31, 2028

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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.