San Francisco · Mission Bay · Block/lot 3821/009 · San Francisco
Since October 2024 within ½ mile: 222 homes completed, 438 permitted, 15 proposed or in review (645 of them deed-restricted affordable); 2 demolitions; 1 commercial or mixed-use project.
25 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.
686 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.
Source: San Francisco Department of Building Inspection, Building Permits · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 28, 2026
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 PDR-1-D as industrial, 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 6.3 yr (since Jul 8, 2020), with no new permit record in 5.6 yr. · 1 unit · $100,000 declared valuation
In "Applied" for 5.3 yr (since Jul 23, 2021), with no new permit record in 5.3 yr. · 1 unit · $250,000 declared valuation
Permit issued and active for 5.9 yr (first record Nov 30, 2020), with no completion or new permit record in 5.2 yr. · 1 unit · $190,000 declared valuation
In "Applied" for 5.2 yr (since Aug 25, 2021), with no new permit record in 5.2 yr. · 1 unit · $150,000 declared valuation
Permit issued and active for 5.1 yr (first record Sep 22, 2021), with no completion or new permit record in 5 yr. · 1 unit · $75,000 declared valuation
Permit issued and active for 4.9 yr (first record Nov 16, 2021), with no completion or new permit record in 4.9 yr. · $125,000,000 declared valuation
Record 202606042603 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (717 De Haro St): Status changed from issued to expired
Record 202312212959 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (519 Arkansas St): Status changed from filed to issued
Record 202610028957 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (519 Arkansas St): Issued date changed from (blank) to 2026-10-22
Record 202610028957 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby hvac / heat pump (519 Arkansas St): Declared valuation changed from 0 to 300000
Record 202610028957 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plumbing / water heater / sewer (1733 20th St): Status changed from filed to issued
Record 202610069102 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plumbing / water heater / sewer (1733 20th St): Issued date changed from (blank) to 2026-10-23
Record 202610069102 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (717 De Haro St): Status changed from filed to complete
Record 202610139324 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (717 De Haro St): Issued date changed from (blank) to 2026-10-22
Record 202610139324 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (717 De Haro St): Declared valuation changed from 0 to 1
Record 202610139324 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby fire alarm / sprinkler (650 Townsend St): Status changed from filed to issued
Record 202610139331 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby fire alarm / sprinkler (650 Townsend St): Issued date changed from (blank) to 2026-10-22
Record 202610139331 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby fire alarm / sprinkler (650 Townsend St): First appeared in published agency feed
Record 202610229804 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (1800 Owens St): First appeared in published agency feed
Record 202610239838 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (522 Vermont St): First appeared in published agency feed
Record 202610239857 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
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 ($12,200/yr) + local voter-approved bond debt ($2,196/yr) + fixed direct levies/Mello-Roos ($450/yr).
Insurance & hazard context:
−$57,417/yr
Cash needed: $268,400
NOI: $16,611/yr
P&I: $6,169/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 | −$5,198/mo | -23.2% | $10,568/mo | −$5,169/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$4,785/mo | -21.4% | $9,782/mo | −$4,551/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 | −$4,547/mo | -20.3% | $9,555/mo | −$4,122/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 ↗
AppliedJul 8, 2026 – Jul 8, 2026
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
demolish 1 (e) 1-story type-v storage shed/building.
fleet charge station/parking lot: demo of (e) pavement and structures 2 site grading,storm draining, paving, desiment and erosion control.housekeeping pad and fountain design of structure & equiment site lighting,electrical service and comm infrastructure.install 8ft fence & shade canopies,gate open
submittal to plumbing inspection division for adminstrative review of stormwater control plans associated with sfpuc storm water control plan.
change of use from (e) 34 space private parking lot to a 23 space private fleet charging parking lot. (e) curb cuts to remain. no change in vehicular entries or exits. all work within property line. install (n) medium voltage switch gear, charging containers, dual port dispensers, associated conduit
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
1150 16TH ST; 1201 08TH ST
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 3821/009. Assessed value is not market value.
Search by block/lot 3821/009 (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.