Building permitMarin County

543 Northern Ave, Mill Valley, Ca 94941

RESIDENTIAL permit in Marin County, issued June 17, 2026. Permit #181933.

$188K
DECLARED VALUE
June 17, 2026
ISSUED
December 30, 2025
FILED

Permit details

Permit number181933
Address543 Northern Ave, Mill Valley, Ca 94941
Permit typeRESIDENTIAL — All other Construction
Work descriptionConversion Of (E) Garage To A D U, Addition To A D Ut.D. 2-20-26 3/25/26 - Refund Adu Fee Of $2500, Al
ContractorI CONSTRUCTION AND STRUCTURAL INC

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Source: Marin County official permit records (Marin County Community Development Agency, Building and Safety Division), retrieved by The Permit Sheet. Verify current status with the issuing department via Marin County Public Access Viewer (CDA Building and Safety records search) before relying on it.