ADU CITIES Contractor Directory

Cornerstone Group

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

☎ Call (949) 878-7171Verify this license at CSLB
CSLB license#1161149
ClassificationsB — General Building
Office of record24311 Peacock St
Lake Forest, CA 92630
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(949) 878-7171
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Exempt
Business typeCorporation
License issuedSeptember 16, 2026
License expiresSeptember 30, 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.