San Francisco · Outer Richmond · Block/lot 1577/004C · San Francisco
Since October 2024 within ½ mile: 6 homes completed, 18 permitted, 1 proposed or in review.
12 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.
840 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.
$1,606,000
Benchmark range: $1,365,000 – $1,847,000
Source: San Francisco Department of Building Inspection, Building Permits · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 28, 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 28, 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.
In "Applied" for 7.4 yr (since Jun 3, 2019), with no new permit record in 6.7 yr. · 1 unit · $30,000 declared valuation
Permit issued and active for 9 yr (first record Oct 24, 2017), with no completion or new permit record in 6.2 yr. · 3 units · $180,000 declared valuation
Permit issued and active for 5.7 yr (first record Jan 27, 2021), with no completion or new permit record in 5.7 yr. · 1 unit
Permit issued and active for 7.3 yr (first record Jul 24, 2019), with no completion or new permit record in 5.6 yr. · 1 unit · $13,974 declared valuation
Permit issued and active for 9.8 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
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
577 39th Ave · 1 unit · $55,107 valuation
Records span Oct 2, 2025 to Sep 21, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
3055 Clement St · 9 units · $3,200,000 valuation
Records span Sep 8, 2022 to Jul 7, 2026 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
2725 Clement St · 1 unit · $140,030 valuation
Records span Nov 10, 2022 to Apr 6, 2026 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
410 39th Ave · 1 unit · $235,000 valuation
Records span Jul 23, 2025 to Jan 8, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
562 28th Ave · 6 units · $2,500,000 valuation
Records span May 5, 2017 to Nov 17, 2025 (7 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
559 36th Ave · 1 unit · $1,250,000 valuation
Records span Feb 15, 2019 to Oct 8, 2025 (5 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
866 38th Ave · 1 unit · $10,000 valuation
Records span Aug 31, 2023 to Oct 7, 2025 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
7333 Geary Bl · 1 unit · $125,000 valuation
Records span May 20, 2022 to Sep 12, 2025 (4 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
434 41st Ave · 1 unit · $133,075 valuation
Records span Mar 25, 2021 to Sep 2, 2025 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
4945 Anza St · 1 unit · $160,000 valuation
Records span Jun 21, 2022 to Mar 11, 2025 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
875a 36th Ave · 1 unit · $28,261 valuation
Records span May 26, 2022 to Jan 24, 2025 (4 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
878 38th Ave · 1 unit · $980,334 valuation
Records span Dec 13, 2023 to Jan 8, 2025 (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 "Applied" for 7.4 yr (first record Jun 3, 2019) with no new permit activity recorded in 6.7 yr.
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).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 9,559 parcels
+15.9% YoY
City baseline: 90.9 / 1k
639 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 ($16,050/yr) + local voter-approved bond debt ($2,889/yr) + fixed direct levies/Mello-Roos ($450/yr).
Insurance & hazard context:
−$85,321/yr
Cash needed: $353,100
NOI: $12,068/yr
P&I: $8,116/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 | −$7,524/mo | -25.6% | $13,814/mo | −$7,525/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$7,110/mo | -24.2% | $12,786/mo | −$6,908/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 | −$6,873/mo | -23.4% | $12,489/mo | −$6,479/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 ↗
Applied1 unitsJun 3, 2019 – Feb 6, 2020
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
per adu ordinance# 95-17, new adu @ 1st floor with 1 kitchen, living area & 1 bedroom.
(n) adu in the 1st flr w/ one kitchen, living area and one bedroom per ord# 162-16. construct (n) spiral stair connects rear yard & 3rd flr. convert sevice stair into storage @ 3rd flr.
interior remodel at 2nd flr. provide 1 new bath replace kitchen. add 1 new study
revision to ref pa 201506048049: rearrange the floor plan to provide a exercise family rm, media rm, new storage, and a new 1/2 bath. provide separation btwn garage and laundry rm with exit for upper floors. all info & detail not provided shall follow pa#201506048049
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel (APN) · Retrieved Oct 28, 2026 · Filed, issued, and status dates come from the Department of Building Inspection, which dates each status change.
No housing activity reported to the State for this parcel (2018–2025 reports).
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 28, 2026
631 34TH AVE; 633 34TH AVE
Source: San Francisco Planning / DataSF, Parcels – Active and Retired · Geography: parcel · Retrieved Oct 28, 2026
Zoning, permits, planning cases, and assessor data for this lot (SF Planning)
Look up block/lot 1577/004C. Assessed value is not market value.
Search by block/lot 1577/004C (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.