Housing project
12 Shell Rd (A D U 12 A) · Unincorporated Marin · APN 033-071-15 · What else is happening nearby
Permit issued; work may be underway. Based on 179426: city status 'Issued'.
As proposed on the most recent active record
The applicant's construction cost estimate on the permit. Not a market or assessed value.
None of these records has changed between our snapshots so far.
C O U Guesthouse To A D U **Legalization Permit**
Applied Mar 3, 2023 · Issued Oct 15, 2025 · 1 units · valuation $8,000 · 12 Shell Rd (A D U 12 A)
Linked because: earliest record in this project
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel · Retrieved Oct 31, 2026
| Report year | Record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2025 | 90873 | ADU · rental | — | 1 | — | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project · Retrieved Oct 26, 2026 · Each row is one report year. A project moves from entitled to permitted to completed across years, so don't add rows together.
Search by record number: 179426
Zoning, assessor links, and the full permit history for the parcel
The city and the State don't publish a single project record, so we group related permits and State housing reports ourselves. This grouping is our inference, not an official record. Each permit shows why it was included.