ADU CITIES Contractor Directory

Altherr L J Design And Construction

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

☎ Call (310) 351-5676Verify this license at CSLB
CSLB license#728114
ClassificationsB — General Building
Office of recordP O Box 452
Avalon, CA 90704
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(310) 351-5676
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedSeptember 27, 1996
License expiresJune 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.