Housing project
1618 Mason St · San Francisco · Block/lot 0129/019 · What else is happening nearby
Permit issued; work may be underway. Based on 202104098281: 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.
addition of (2) adu's in existing basement.
Applied Apr 9, 2021 · Issued Jun 1, 2022 · 2 units · valuation $275,000 · 1618 Mason St
Linked because: earliest record in this project
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel · Retrieved Nov 14, 2026
| Report year | Record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2022 | 202104098281 | ADU · rental | — | 2 | — | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project · Retrieved Nov 9, 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: 202104098281
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.