San Francisco · Excelsior · Block/lot 6473/041A · San Francisco
Since October 2024 within ½ mile: 19 homes completed, 4 permitted, 16 proposed or in review (1 of them deed-restricted affordable).
23 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.
343 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 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 8.2 yr (first record Jul 30, 2018), with no completion or new permit record in 6.4 yr. · 3 units · $950,000 declared valuation
In "Entitled" for 6.3 yr (since Jun 25, 2020), with no new permit record in 6.3 yr. · 17 units
In "Applied" for 6.1 yr (since Sep 2, 2020), with no new permit record in 6.1 yr. · 50 units · $5,500,000 declared valuation
In "Applied" for 4.9 yr (since Nov 16, 2021), with no new permit record in 4.9 yr. · 1 unit · $100,000 declared valuation
Permit issued and active for 7.7 yr (first record Feb 5, 2019), with no completion or new permit record in 4.1 yr. · 1 unit · $345,600 declared valuation
Permit issued and active for 4.8 yr (first record Jan 19, 2022), with no completion or new permit record in 4 yr. · 1 unit · $70,000 declared valuation
Nearby fire alarm / sprinkler (5530 Mission St): Status changed from issued to complete
Record 202107124164 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
89a Farallones St · 1 unit · $98,000 valuation
Records span Oct 23, 2025 to Oct 20, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
Accessory dwelling unit (new or conversion) permit application filed (202606223679)
Current status: filed
change of use at family room lower floor to adu. install kitchen into family room & add 463 sq ft w/ new bathroom & entertaining room at lower floor. garage convert into conditioned living space. comply w/ nov #202535682. · Declared valuation: $56,000
Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel
246 Guttenberg St · 1 unit · $100,000 valuation
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
163v Rae Ave · 1 unit · $355,195 valuation
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
2625 San Jose Ave · 1 unit · $122,636 valuation
Records span May 23, 2025 to Feb 13, 2026 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
121 Sagamore St · 1 unit · $153,000 valuation
Records span Jul 12, 2024 to Jan 26, 2026 (4 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
371a Ellington Ave · 1 unit · $180,000 valuation
Records span Aug 12, 2025 to Nov 12, 2025 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
5616 Mission St · 10 units · 1 affordable · $2,000,000 valuation
Records span Jul 6, 2018 to Oct 31, 2025 (5 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
1 unit
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
2834 San Jose Ave · 6 units · $1,000,000 valuation
Records span Sep 23, 2025 to Sep 25, 2025 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
33a Sadowa St · 2 units · $475,438 valuation
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
8a Regent St · 1 unit · $150,000 valuation
Records span Mar 29, 2024 to Sep 9, 2025 (3 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
37 Sadowa St · 1 unit · $211,000 valuation
Records span Oct 17, 2024 to Jul 21, 2025 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
631 Morse St · 1 unit · $52,220 valuation
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project 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 ($11,800/yr) + local voter-approved bond debt ($2,124/yr) + fixed direct levies/Mello-Roos ($450/yr).
Insurance & hazard context:
−$54,518/yr
Cash needed: $259,600
NOI: $17,083/yr
P&I: $5,967/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 | −$4,957/mo | -22.9% | $10,231/mo | −$4,924/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$4,543/mo | -21.0% | $9,470/mo | −$4,306/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 | −$4,306/mo | -19.9% | $9,250/mo | −$3,878/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 unitsJul 9, 2026 – Jul 9, 2026
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
change of use at family room lower floor to adu. install kitchen into family room & add 463 sq ft w/ new bathroom & entertaining room at lower floor. garage convert into conditioned living space. comply w/ nov #202535682.
to comply with nov# 202421679: remove horizontal extension atthe rear of home.
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
46 CASSANDRA CT
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 6473/041A. Assessed value is not market value.
Search by block/lot 6473/041A (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.