San Francisco · Twin Peaks · Block/lot 2821/021 · San Francisco
Since October 2024 within ½ mile: 1 permitted, 2 proposed or in review.
3 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.
630 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 29, 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 "Approved" for 5.8 yr (since Jan 21, 2021), with no new permit record in 5.7 yr. · 1 unit · $255,673 declared valuation
In "Applied" for 7.9 yr (since Dec 5, 2018), with no new permit record in 7.9 yr. · 1 unit · $304,147 declared valuation
In "Applied" for 7.5 yr (since May 14, 2019), with no new permit record in 7.5 yr. · 1 unit · $5,000 declared valuation
Permit issued and active for 7.8 yr (first record Dec 27, 2018), with no completion or new permit record in 7.3 yr. · 1 unit · $105,000 declared valuation
Permit issued and active for 7.7 yr (first record Jan 31, 2019), with no completion or new permit record in 6.2 yr. · 1 unit · $12,500 declared valuation
Permit issued and active for 5.8 yr (first record Jan 5, 2021), with no completion or new permit record in 5.8 yr. · 7 units · $250,000 declared valuation
Nearby plumbing / water heater / sewer (100 Encline Ct): Status changed from issued to complete
Record 202605010512 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby plan revision / deferred submittal (375 Woodside Av): First appeared in published agency feed
Record 202610280003 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (338 Teresita Bl): First appeared in published agency feed
Record 202610280011 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (104 Turquoise Wy): First appeared in published agency feed
Record 202610269886 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Nearby remodel / interior alteration (630 Grand View Av): First appeared in published agency feed
Record 202610239840 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
1 unit
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
19a Cityview Wy · 1 unit · $178,500 valuation
Records span Sep 15, 2023 to Feb 7, 2025 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
127 Skyview Wy · 1 unit · $65,178 valuation
Records span Sep 3, 2024 to Oct 31, 2024 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
54 Sunview Dr · 1 unit · $300,000 valuation
Records span Aug 27, 2020 to Oct 31, 2023 (1 permit).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
24 Amber Dr · 3 units · 3 affordable · $300,000 valuation
Records span Dec 18, 2018 to Oct 5, 2023 (6 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
81a Teresita Bl · 1 unit · $150,000 valuation
Records span Aug 21, 2019 to Jun 28, 2023 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
15a Merced Ave · 1 unit · $14,000 valuation
Records span Apr 26, 2018 to Apr 17, 2023 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
110 Hernandez Ave · 1 unit · $300,000 valuation
Records span Mar 11, 2021 to Mar 24, 2023 (3 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
531 Panorama Dr · 1 unit · $186,500 valuation
Records span Feb 15, 2022 to Jan 19, 2023 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
733 Laguna Honda Bl · 1 unit · $100,000 valuation
Records span Dec 28, 2020 to Oct 17, 2022 (2 permits).
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 "Approved" for 5.8 yr (first record Jan 21, 2021) with no new permit activity recorded in 5.7 yr.
Active in "Approved" for 5.8 yr (first record Jan 21, 2021) with no new permit activity recorded in 5.8 yr. High-impact scale (1 housing unit, $2,250,000 declared valuation across 1 permit).
Active in "Applied" for 5.5 yr (first record Apr 30, 2021) with no new permit activity recorded in 5.5 yr. High-impact scale (4 housing units, $260,000 declared valuation across 1 permit).
Active in "Issued" for 5.8 yr (first record Jan 5, 2021) with no new permit activity recorded in 5.8 yr. High-impact scale (7 housing units, $250,000 declared valuation across 4 permits).
Active in "Approved" for 5.8 yr (first record Jan 21, 2021) with no new permit activity recorded in 5.7 yr.
Active in "Approved" for 5.8 yr (first record Jan 21, 2021) with no new permit activity recorded in 5.7 yr.
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 1,754 parcels
+4.8% YoY
City baseline: 91.1 / 1k
129 in trailing 24m
Includes 1 ADUs
Approved1 unitsJan 21, 2021 – Feb 8, 2021
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
new adu unit within new single family home single family home bpn 2021-0121-2969
to erect 4 stories, 1 basement, type v-b, single family home w/ adu. adu under separate permit.
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.
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 29, 2026
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 2821/021. Assessed value is not market value.
Search by block/lot 2821/021 (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.