Housing project
4257 23rd St · San Francisco · Block/lot 2805/039 · What else is happening nearby
Permit issued; work may be underway. Based on 202109148342: 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.
per emergency demo order #110944-e, to demolish a 2-story, type 5, single family house.
Applied Dec 4, 2020 · Issued Dec 22, 2020 · valuation $50,000 · 4257 23rd St
Linked because: earliest record in this project
to erect 2 stories, no basement, type v-b, single family dwelling.
Applied Sep 14, 2021 · Issued Jul 25, 2023 · 1 units · valuation $1,141,200 · 4257 23rd St
Linked because: same street address, within 3 years of another record here
alterations to pa #202109148342 (s1). change sprinkler designation from nfpa code standard 13r to 13d. eliminate gray water landscape system. add foundation phase installation plan. alter some existing wall framing stud thickness from 2x6 to 2x4 and provide revised energy calcs. mp 3.0 and mp 3.1
Applied Jul 23, 2025 · Issued Jul 23, 2025 · 1 units · valuation $1 · 4257 23rd St
Linked because: the city's record text cites a permit in this project
| Report year | Record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2024 | 202109148342 | SFD · ownership | — | 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: 202012040314, 202109148342, 202507231412
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.
install fire sprinkler system for home per nfpa 13d using combo meter new 26 heads total. ref permits 202507231412, 20210914834-s1.
Applied Oct 7, 2025 · Issued Oct 7, 2025 · 1 units · valuation $30,000 · 4257 23rd St
Linked because: the city's record text cites a permit in this project
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel · Retrieved Oct 31, 2026