San Francisco · West of Twin Peaks · Block/lot 3143/002 · San Francisco
Since October 2024 within ½ mile: 3 homes completed, 12 permitted, 6 proposed or in review; 1 commercial or mixed-use project.
21 projects with a record in this window, grouped by us from permits and State housing reports. Units are as proposed on each project's latest record and counted at its current stage.
809 permits within ½ mile since October 2024
The map shows new construction, ADUs, demolitions, additions, and renovations. Routine systems work (roofs, HVAC, water heaters) is counted but not mapped. Unit counts are as stated on permits.
$2,494,000
Benchmark range: $2,120,000 – $2,868,000
Source: San Francisco Department of Building Inspection, Building Permits · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 29, 2026
Public-records benchmark estimate combining Zillow Home Value Index (Data provided by Zillow), Census ACS 5-year estimates, parcel land-use/lot characteristics, and issued building permits. Not an official appraisal.
Permit counts, by the date issued (or applied, if not yet issued). Lot splits are planning cases, which we don't have.
We read public zoning and hazard maps against state law (ADUs: Gov. Code 66314; SB 9: Gov. Code 65852.21 and 66411.7). Local rules, title, tenancy history and site conditions can change the answer. Check with San Francisco's planning department before relying on it.
Sources: San Francisco Planning, Zoning Map – Zoning Districts (retrieved Oct 29, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the State Responsibility Area (effective 2024-04-01) (retrieved Oct 26, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the Local Responsibility Area (map dated 2025-03-24) (retrieved Oct 26, 2026) · FEMA, National Flood Hazard Layer — flood hazard zones (retrieved Oct 26, 2026) · FEMA, National Flood Hazard Layer — FIRM panels (retrieved Oct 26, 2026) · California Geological Survey, Alquist-Priolo Earthquake Fault Zones (retrieved Oct 26, 2026) · Zoning classes: our classification of RH-1 as single-family residential, checked against the zone description on Oct 24, 2026
Chronological history of building permit applications and issuances, snapshot-dated status changes, State housing entitlements, surrounding development within ½ mile, and area home-value trends.
Permit issued and active for 7 yr (first record Nov 4, 2019), with no completion or new permit record in 5.6 yr. · 1 unit · $50,000 declared valuation
In "Applied" for 5.5 yr (since Apr 13, 2021), with no new permit record in 5.5 yr. · 1 unit · $210,000 declared valuation
Permit issued and active for 10.3 yr (first record Jul 12, 2016), with no completion or new permit record in 5.1 yr. · 1 unit · $800,000 declared valuation
Permit issued and active for 8.3 yr (first record Jul 6, 2018), with no completion or new permit record in 5.1 yr. · 1 unit · $450,000 declared valuation
Permit issued and active for 6.7 yr (first record Feb 12, 2020), with no completion or new permit record in 5 yr. · 1 unit · $12,051 declared valuation
Permit issued and active for 5.6 yr (first record Mar 9, 2021), with no completion or new permit record in 5 yr. · $60,000 declared valuation
Nearby windows / doors / siding (237 Onondaga Av): Status changed from issued to complete
Record 202608116398 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plan revision / deferred submittal (237 Onondaga Av): Status changed from issued to complete
Record 202608186800 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plumbing / water heater / sewer (149 Chilton Av): Status changed from issued to complete
Record 202608035992 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (327 Staples Av): Description text was updated
Record 202603308539 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plan revision / deferred submittal (391 Joost Av): First appeared in published agency feed
Record 202604239950 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby windows / doors / siding (589 Congo St): Status changed from issued to complete
Record 202607225379 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (650 Joost Av): Status changed from filed to issued
Record 202609118042 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (650 Joost Av): Issued date changed from (blank) to 2026-10-23
Record 202609118042 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (201 Gennessee St): Status changed from filed to issued
Record 202610099258 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (201 Gennessee St): Issued date changed from (blank) to 2026-10-22
Record 202610099258 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (201 Gennessee St): Declared valuation changed from 100000 to 75000
Record 202610099258 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
143 Chilton Ave · 1 unit · $111,587 valuation
Records span Sep 9, 2025 to Oct 14, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
135 Hearst Ave · 1 unit · $240,000 valuation
Records span Sep 8, 2022 to Sep 18, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
319a Flood Ave · 1 unit · $190,000 valuation
Records span Sep 20, 2023 to Aug 19, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
319 Flood Ave · 1 unit · $10,000 valuation
Records span Sep 20, 2023 to Aug 19, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
Cross-referenced intelligence from our historical development graph—connecting parcels, permits, entity-resolved builders, empirical review-time distributions, and neighborhood renovation trends.
Explore full San Francisco development graph →Active in "Issued" for 21 mo (first record Feb 3, 2025) with no new permit activity recorded in 21 mo.
Active in "Entitled" for 4.4 yr (first record May 19, 2022) with no new permit activity recorded in 4.4 yr. High-impact scale (35 housing units, 6 deed-restricted affordable across 0 permits).
Active in "Issued" for 4.8 yr (first record Jan 20, 2022) with no new permit activity recorded in 4.8 yr. High-impact scale (4 housing units across 0 permits).
Active in "Issued" for 10.3 yr (first record Jul 12, 2016) with no new permit activity recorded in 5.1 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 4 permits).
Active in "Issued" for 9.9 yr (first record Dec 2, 2016) with no new permit activity recorded in 4.2 yr. High-impact scale (1 housing unit, $1,093,349 declared valuation across 2 permits).
Active in "Applied" for 4.4 yr (first record Jun 8, 2022) with no new permit activity recorded in 4.4 yr. High-impact scale (1 housing unit, $977,000 declared valuation across 1 permit).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 13,217 parcels
+15.6% YoY
City baseline: 91.1 / 1k
843 in trailing 24m
Includes 28 ADUs
HUD Metro Fair Market Rent · San Francisco, CA HUD Metro FMR Area
HUD FY 2026 · 40th-percentile gross rentCensus ACS 5-year median gross rent (all bedroom counts combined):
Area home-value benchmarks (not an appraisal)
ZIP & neighborhood mediansUnder California Proposition 13, the seller's historical assessed value does not carry over to a buyer. On sale, the parcel is reassessed at the purchase price: 1.00% base rate ($24,950/yr) + local voter-approved bond debt ($4,491/yr) + fixed direct levies/Mello-Roos ($450/yr).
Insurance & hazard context:
−$149,827/yr
Cash needed: $548,900
NOI: $1,566/yr
P&I: $12,616/mo
For $0/mo net cash flow
At $3,600/mo rent
| Scenario | Assumptions | Year 1 Rent | Year 1 Cash Flow | Cash-on-Cash | Break-Even Rent | Year 5 Cash Flow |
|---|---|---|---|---|---|---|
| Conservative | −8% starting rent, +3% vacancy, +3% combined maintenance/CapEx, 1.5%/yr rent growth | $3,312/mo | −$12,899/mo | -28.2% | $21,318/mo | −$12,973/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$12,486/mo | -27.3% | $19,731/mo | −$12,355/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.2%/yr rent growth (capped by local ordinance ceiling of 4.2%/yr) | $3,816/mo | −$12,248/mo | -26.8% | $19,273/mo | −$11,927/mo |
Rental regulatory context (informational only — not legal advice):
California AB 1482 (Tenant Protection Act, Civ. Code § 1947.12) caps annual rent increases at 5% + local CPI (max 10%) on covered properties. In San Francisco: San Francisco Rent Ordinance (Admin. Code Ch. 37) — annual allowable increase is 60% of Bay Area CPI (capped at 7%) for covered pre-June 1979 buildings. Official program rules ↗
Issued1 unitsFeb 3, 2025 – Feb 3, 2025
Finaled / completed1 unitsNov 30, 2021 – Sep 10, 2024
Finaled / completed1 unitsJan 31, 2019 – Nov 22, 2022
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
per pa #202401174084, add adu address to apn 3143/002 as; 107a flood ave.
revision to pa # 2019-0131-1713 remodel bathroom in unit 107. replace furnace in unit 107 & 109. replace (e) water heater w/tankless water heater in unit 107 & 109. reconstruct landing & stairs at back of unit #109
rev to pa# 2023-0804-3759; new concrete slab. new footing at front. new 2x4 studs nailed to (e) 2x4 stud at side walls. new 2x6 studs at front and back. put 2x8 sister on (e) roof rafter, put 3/8 cdx sheathing to left side wall. all work in exist. garage convert to new adu area
correct address from 105 to 107-109 flood ave. ref pa# 202307111880
correct address from 105 to 107-109 flood ave. ref pa# 202111303348
new foundation for front wall. revision to 202111303348. comply w/ nov 201800071.
convert existing detached garage into a new adu.
comply with nov 201892871. demolish unpermitted addition at rear of (e) house. relocate kitchen and bath in conjunction w/creation of adu in garage
take out garage wall, to comply with nov # 201800071 #1
comply with nov 201893881, install hydronic heater baseboard
to comply #201893891 item 2, build six steps handrail to the rear portions of stair.
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel (APN) · Retrieved Oct 29, 2026 · Filed, issued, and status dates come from the Department of Building Inspection, which dates each status change.
| Report year | Project / record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2024 | —(202111303348) | ADU · Renter | — | — | 1 (Sep 10, 2024) | — |
| 2022 | —(202111303348) | ADU · Renter | — | 1 (Dec 21, 2022) | — | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project (parcel) · Retrieved Oct 26, 2026 · From San Francisco's Housing Element Annual Progress Reports. A project can appear in several report years as it moves from entitlement to permit to completion.
Source: San Francisco Planning, Zoning Map – Zoning Districts · Geography: zoning district polygon at parcel point · Retrieved Oct 29, 2026
107A FLOOD AVE; 107 FLOOD AVE; 109 FLOOD AVE
Source: San Francisco Planning / DataSF, Parcels – Active and Retired · Geography: parcel · Retrieved Oct 29, 2026
Zoning, permits, planning cases, and assessor data for this lot (SF Planning)
Look up block/lot 3143/002. Assessed value is not market value.
Search by block/lot 3143/002 (SF Treasurer & Tax Collector)
Search building permits, complaints, and inspections by address or block/lot
The official flood hazard map for this location. Our reading of it is under What could be built here.
This site does not show owner names.