ADU CITIES Contractor Directory

Building Block Construction

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

CSLB license#1010319
ClassificationsB — General Building
Office of record1932 N E St
San Bernardino, CA 92411
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(951) 376-7822
Contractor bond$25,000 — Business Alliance Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedJanuary 14, 2016
License expiresJanuary 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.