ADU CITIES Contractor Directory

Costanzo Development Services

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

CSLB license#1075750
ClassificationsB — General Building · C-10 — Electrical
Office of record39520 Murrieta Hot Springsroad 219 Suite 81
Murrieta, CA 92563
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(951) 240-1222
Contractor bond$25,000 — Business Alliance Insurance Company
Workers' comp (CSLB record)Exempt
Business typeCorporation
License issuedMay 13, 2021
License expiresMay 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.