No situs address on record

San Francisco · Potrero Hill · Block/lot 4171/003 · San Francisco

Property brief (PDF)Timeline ↓Calculator ↓Official records ↓

This parcel number no longer appears in the county's current parcel map. It may have been split, merged, or renumbered.

What's changing nearby

Since October 2024 within ½ mile: 106 homes completed, 31 permitted, 34 proposed or in review (116 of them deed-restricted affordable); 8 demolitions; 1 commercial or mixed-use project.

24 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.

493 permits within ½ mile since October 2024

New construction3 · 3 units
Adds housing (ADU)8 · 10 units
Demolition27
Additions & renovations168
Building systems196
Repairs34
Other57

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.

Explore projects on the map →Explore sales & prices →

Source: San Francisco Department of Building Inspection, Building Permits · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 30, 2026

Property & area intelligence timeline

80 events · 24 slow/stalled projects

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.

Slow-moving or stalled projects (24)

Active projects spending 12+ months pre-issuance, 24+ months under construction, or 6+ months without new records

StalledAccessory dwelling unit at 1071 Mississippi StApplied
0.38 mi SW
In "Applied" for 7.4 yr (since Jun 11, 2019), with no new permit record in 7.4 yr. · 1 unit · $15,000 declared valuation
StalledNew commercial building at 88 Maryland StApproved
0.34 mi NE
In "Approved" for 7.2 yr (since Aug 30, 2019), with no new permit record in 7.2 yr.
Stalled241 new homes at 919 Illinois StApproved
0.21 mi NE
In "Approved" for 6.9 yr (since Nov 25, 2019), with no new permit record in 6.9 yr. · 241 units · $150,000,000 declared valuation
StalledNew homeIssued
190 ft SE
Permit issued and active for 6.8 yr (first record Jan 3, 2020), with no completion or new permit record in 6.8 yr. · 1 unit
StalledNew homeEntitled
0.32 mi W
In "Entitled" for 6.5 yr (since Apr 16, 2020), with no new permit record in 6.5 yr. · 1 unit
StalledAccessory dwelling unit at 345 Texas StIssued
0.44 mi NW
Permit issued and active for 6.7 yr (first record Feb 11, 2020), with no completion or new permit record in 6.1 yr. · 1 unit · $35,000 declared valuation

202615 events

Oct 29, 2026 – Oct 30, 2026Snapshot windowNearby snapshot change
0.46 mi W
Nearby windows / doors / siding (573 Arkansas St): First appeared in published agency feed
Record 202610290110 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 28, 2026 – Oct 29, 2026Snapshot windowNearby snapshot change
420 ft E
Nearby remodel / interior alteration (2505 03rd St): Status changed from suspend to cancelled
Record 202205204718 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 28, 2026 – Oct 29, 2026Snapshot windowNearby snapshot change
0.33 mi N
Nearby remodel / interior alteration (2175 03rd St): Status changed from filed to issued
Record 202609188376 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 28, 2026 – Oct 29, 2026Snapshot windowNearby snapshot change
0.33 mi N
Nearby remodel / interior alteration (2175 03rd St): Issued date changed from (blank) to 2026-10-28
Record 202609188376 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.44 mi E
Nearby commercial tenant improvement (1241 Delaware St): Status changed from filed to approved
Record 202512081182 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.35 mi N
Nearby repair tied to a housing/code case (712 Tennessee St): Status changed from issued to complete
Record 202604219836 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.35 mi N
Nearby plan revision / deferred submittal (712 Tennessee St): Status changed from issued to complete
Record 202608317493 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.3 mi N
Nearby electrical / panel (638 19th St): Status changed from issued to complete
Record 202609178261 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.48 mi W
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
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.48 mi W
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
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.48 mi W
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
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.33 mi N
Nearby remodel / interior alteration (2175 03rd St): Declared valuation changed from 0 to 500000
Record 202609188376 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Oct 23, 2026 – Oct 24, 2026Snapshot windowNearby snapshot change
0.39 mi N
Nearby plumbing / water heater / sewer (560 18th St): First appeared in published agency feed
Record 202610239855 · Detected between snapshots
Source: San Francisco Department of Building Inspection, Building Permits · Snapshot diff within ½ mile
Sep 2, 2026Nearby project · Issued
0.3 mi W
Accessory dwelling unit at 568 Mississippi St — Issued
568 Mississippi St · 1 unit · $200,000 valuation
Records span Jan 3, 2023 to Sep 2, 2026 (2 permits).
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)
Jun 30, 2026Nearby project · Applied
0.42 mi NW
Accessory dwelling unit at 363 Texas St — Applied
363 Texas St · 1 unit · $750,000 valuation
Source: San Francisco Department of Building Inspection, Building Permits & HCD APR (grouped project within ½ mile)

Showing 15 of 80 timeline events

Recorded sales & deed transfers: California county recorders do not publish open bulk deed-transfer feeds without owner-PII restrictions, so individual sale deeds are not redistributed here. For official assessment roll and recorded transfer history in San Francisco, inspect Property Information Map ↗.

Development graph & closer investigation

6 investigation leads

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 →

Developments deserving closer investigation (6)

On this parcel & within ½ mile

241 new homes at 919 Illinois StApprovedNo new record in 6.9 yr241 units
0.21 mi NE
Active in "Approved" for 6.9 yr (first record Nov 25, 2019) with no new permit activity recorded in 6.9 yr. High-impact scale (241 housing units, $150,000,000 declared valuation across 2 permits).
348 new homes at 151 Humboldt StAppliedNo new record in 4.4 yr348 units
0.36 mi E
Active in "Applied" for 4.4 yr (first record May 19, 2022) with no new permit activity recorded in 4.4 yr. High-impact scale (348 housing units, $175,000,000 declared valuation across 1 permit).
25 new homes at 1055 Texas StIssuedNo new record in 19 mo25 units
0.42 mi SW
Active in "Issued" for 5.7 yr (first record Mar 3, 2021) with no new permit activity recorded in 19 mo. High-impact scale (25 housing units, 6 deed-restricted affordable, $5,000,000 declared valuation across 2 permits).
25 new homesEntitledNo new record in 20 mo25 units
0.42 mi SW
Active in "Entitled" for 20 mo (first record Mar 12, 2025) with no new permit activity recorded in 20 mo. High-impact scale (25 housing units, 6 deed-restricted affordable across 0 permits).
1055 TEXAS ST (formerly 999 TEXAS ST)EntitledNo new record in 5.8 yr25 units
0.42 mi SW
Active in "Entitled" for 5.8 yr (first record Jan 14, 2021) with no new permit activity recorded in 5.8 yr. High-impact scale (25 housing units across 0 permits).
New commercial building at 601 23rd StAppliedNo new record in 14 mo$762,635
0.22 mi SE
Active in "Applied" for 14 mo (first record Aug 28, 2025) with no new permit activity recorded in 14 mo. High-impact scale ($762,635 declared valuation across 1 permit).

Neighborhood renovation & housing momentum: Potrero Hill

Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 2,930 parcels

Rank #7 of 37 neighborhoods in acceleration

Last 12m vs prior 12m: 167 vs 129 permits
24m rate per 1,000 parcels: 101.0
5-year substantial permits: 742
Housing additions (24m): 18 units

Development projects on this parcel

New home at 1108 Tennessee St
Finaled / completed1 unitsJan 4, 2022 – Feb 9, 2023

We group related permits and State housing reports into projects. That grouping is our inference, not an official record.

Permit history on this parcel

3 records

Fire alarm / sprinkler202209283312
installatin of a new sprinkler monitoring ref pa# 2022-0729-9583
installatin of a new sprinkler monitoring ref pa# 2022-0729-9583
Applied
Sep 28, 2022
Issued
Oct 12, 2022
Recorded status
complete as of Jan 19, 2023
Declared valuation
$4,000
Fire alarm / sprinkler202207299583
install 14 new fire sprinklers throughout g/f per nfpa13r & underground per nfpa24. ref bpa 202201045326
install 14 new fire sprinklers throughout g/f per nfpa13r & underground per nfpa24. ref bpa 202201045326
Applied
Jul 29, 2022
Issued
Aug 4, 2022
Recorded status
complete as of Jan 19, 2023
Declared valuation
$10,100
Fire alarm / sprinkler202201045326
add new apartment unit, kitchen and bath; add 2 gas heating units; raise ceiling height at breezeway; add fire sprinklers at entire ground fl in accordance with nfpa 13r under a separate permit
add new apartment unit, kitchen and bath; add 2 gas heating units; raise ceiling height at breezeway; add fire sprinklers at entire ground fl in accordance with nfpa 13r under a separate permit
Applied
Jan 4, 2022
Issued
Jun 24, 2022
Recorded status
complete as of Feb 9, 2023
Declared valuation
$145,000

Source: San Francisco Department of Building Inspection, Building Permits · Geography: parcel (APN) · Retrieved Oct 30, 2026 · Filed, issued, and status dates come from the Department of Building Inspection, which dates each status change.

Housing activity reported to the State

Report year	Project / record	Type	Entitled	Permitted	Completed	Deed-restricted
2023	—(202201045326)	2 to 4 · Renter	—	—	1 (Feb 9, 2023)	—
2022	—(202201045326)	2 to 4 · Renter	—	1 (Jun 24, 2022)	—	—

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.

Zoning & planning

Zoning: RH-3: RESIDENTIAL- HOUSE, THREE FAMILY code

Source: San Francisco Planning, Zoning Map – Zoning Districts · Geography: zoning district polygon at parcel point · Retrieved Oct 30, 2026

Parcel facts

Lot size: —
Parcel type: Lot
Addresses on parcel: —

Source: San Francisco Planning / DataSF, Parcels – Active and Retired · Geography: parcel · Retrieved Oct 30, 2026

Official records

Property Information Map
Zoning, permits, planning cases, and assessor data for this lot (SF Planning)
Assessor-Recorder
Look up block/lot 4171/003. Assessed value is not market value.
Property tax payment
Search by block/lot 4171/003 (SF Treasurer & Tax Collector)
DBI permit tracking
Search building permits, complaints, and inspections by address or block/lot
FEMA Flood Map Service Center
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.

Report year

Project / record

Type

Entitled

Permitted

Completed

Deed-restricted

2023

—(202201045326)

2 to 4 · Renter

—

1 (Feb 9, 2023)

—

2022

—(202201045326)

2 to 4 · Renter

—

1 (Jun 24, 2022)

—