San Francisco · Outer Richmond · Block/lot 1575/031 · San Francisco
Since October 2024 within ½ mile: 7 homes completed, 22 permitted, 1 proposed or in review.
16 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.
900 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.
$1,664,000
Benchmark range: $1,414,000 – $1,914,000
Source: San Francisco Department of Building Inspection, Building Permits · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 31, 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.
No ADU or new-home permits recorded within ¼ mile in this window.
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 31, 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-2 as two-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 9.9 yr (first record Dec 22, 2016), with no completion or new permit record in 5.3 yr. · 1 unit · $15,000 declared valuation
Permit issued and active for 8.6 yr (first record Mar 23, 2018), with no completion or new permit record in 5.2 yr. · 3 units · $37,750 declared valuation
Permit issued and active for 7.9 yr (first record Dec 11, 2018), with no completion or new permit record in 5.1 yr. · 1 unit · $89,000 declared valuation
In "Applied" for 5 yr (since Nov 4, 2021), with no new permit record in 5 yr. · 1 unit · $100,000 declared valuation
Permit issued and active for 6.1 yr (first record Oct 6, 2020), with no completion or new permit record in 5 yr. · 1 unit · $91,000 declared valuation
In "Applied" for 4.4 yr (since May 26, 2022), with no new permit record in 4.4 yr. · 1 unit · $140,000 declared valuation
Nearby roof replacement (6221 Geary Bl): Declared valuation changed from 0 to 20000
Record 202605121120 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby general repair (334 31st Av): Status changed from issued to complete
Record 202606304194 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (3626 Balboa St): Status changed from filed to issued
Record 202610280064 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (3626 Balboa St): Issued date changed from (blank) to 2026-10-29
Record 202610280064 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (3626 Balboa St): Declared valuation changed from 0 to 1000
Record 202610280064 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (3626 Balboa St): Description text was updated
Record 202610280064 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby roof replacement (726 30th Av): Declared valuation changed from 0 to 704154
Record 202601224366 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby addition (adds square footage) (866 35th Av): Status changed from filed to issued
Record 202606223673 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby addition (adds square footage) (866 35th Av): Issued date changed from (blank) to 2026-10-28
Record 202606223673 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (742 33rd Av): First appeared in published agency feed
Record 202610279973 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (439 30th Av): First appeared in published agency feed
Record 202610280048 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (3626 Balboa St): First appeared in published agency feed
Record 202610280064 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby electrical / panel (3620 Balboa St): Status changed from suspend to reinstated
Record 202610018903 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby roof replacement (726 30th Av): Description text was updated
Record 202601224366 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby roof replacement (3641 Clement St): First appeared in published agency feed
Record 202610239848 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff 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 7.3 yr (first record Jul 2, 2019) with no new permit activity recorded in 4.2 yr. High-impact scale (2 housing units, $850,000 declared valuation across 5 permits).
Active in "Issued" for 6.8 yr (first record Jan 9, 2020) with no new permit activity recorded in 3 yr. High-impact scale (2 housing units, $1,300,404 declared valuation across 7 permits).
Active in "Issued" for 6.9 yr (first record Dec 9, 2019) with no new permit activity recorded in 3.6 yr. High-impact scale (5 housing units, $1,966,580 declared valuation across 4 permits).
Active in "Issued" for 6.9 yr (first record Dec 9, 2019) with no new permit activity recorded in 3.6 yr. High-impact scale ($1,250,000 declared valuation across 2 permits).
Active in "Issued" for 9.5 yr (first record May 5, 2017) with no new permit activity recorded in 11 mo. High-impact scale (6 housing units, $2,500,000 declared valuation across 7 permits).
Active in "Issued" for 3.2 yr (first record Aug 28, 2023) with no new permit activity recorded in 10 mo. High-impact scale (2 housing units, $1,310,000 declared valuation across 1 permit).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 9,559 parcels
+16.1% YoY
City baseline: 91.1 / 1k
644 in trailing 24m
Includes 22 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 ($16,650/yr) + local voter-approved bond debt ($2,997/yr) + fixed direct levies/Mello-Roos ($450/yr).
Insurance & hazard context:
−$89,670/yr
Cash needed: $366,300
NOI: $11,360/yr
P&I: $8,419/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 | −$7,886/mo | -25.8% | $14,320/mo | −$7,893/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$7,472/mo | -24.5% | $13,254/mo | −$7,275/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 | −$7,235/mo | -23.7% | $12,947/mo | −$6,846/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 ↗
Finaled / completed1 unitsSep 22, 2017 – Sep 21, 2023
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
reroofing
replace all rear siding, like for like. not visible from street. ~625sf.
install new sprinkler monitoring system. new sk-6700 control unit. starlink wireless alarm radio communicator. manual pull-station, monitor modules. ref pa# 201709229356. sprinkler pa# 202205093788.
install (n) fire sprinkler system for ground floor only. underground fire service connection also included. ref# 201709229356
revision of 2017 0922 9356: renovate (e) exit passage way to have 3' width, 1-hr rated finishes. reswing doors & add a bike closet. (n) furnace tankless water heaters & laundry locations
interior renovation to the (e) units on the 2nd & 3rd floors: converting (e) closets to a new full bathroom on each floor, typical
legalize 1st floor dwelling unit from (e) family room as per ord #43-14
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel (APN) · Retrieved Oct 31, 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 |
|---|---|---|---|---|---|---|
| 2023 | —(201709229356) | ADU · Renter | — | — | 1 (Sep 21, 2023) | — |
| 2021 | —(201709229356) | 2 to 4 · Renter | — | 1 (Apr 21, 2021) | — | — |
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 31, 2026
4139A ANZA ST; 4139 ANZA ST; 4141 ANZA ST
Source: San Francisco Planning / DataSF, Parcels – Active and Retired · Geography: parcel · Retrieved Oct 31, 2026
Zoning, permits, planning cases, and assessor data for this lot (SF Planning)
Look up block/lot 1575/031. Assessed value is not market value.
Search by block/lot 1575/031 (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.