San Francisco City property record for 1237 Folsom St, San Francisco, CA 94103
| Property Type | R&D Facility, Laboratory |
|---|---|
| Details | 1 ba · 2,250 sqft · built 1907 |
| Lot Size | 0.001 acres (23 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,495,000 (Aug 2015) |
| Tax Bill | $22,667 (2025) |
| APN | 3756-042 |
| Primary APN | 3756-042 |
|---|
| Full Baths | 1 Bath |
|---|---|
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 2,250 sqft Gross Area |
| 1st Floor Area | 2,250 sqft |
| Year Built | Built 1907 |
|---|---|
| Effective Year Built | Effective 1907 |
| Construction Type | Frame |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 23 sqft (0.001 acres) |
| Lot Dimensions | 90 ft deep x 25 ft wide |
| Street Address | 1237 FOLSOM ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94103-3816 |
| Property Category | Industrial |
| Property Type | Industrial > R&D Facility, Laboratory |
| Local Zoning Code | SLR |
| Legal Subdivision | 100 VARA BL 417 |
| Legal Block | 3756 |
| Legal Lot Number | 42 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | SOMA-POTRERO-MISSION BAY |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 17803 |
1237 Folsom St, an industrial property, is owned by a company that bought it in August 2015.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1401 21ST ST, R, SACRAMENTO, CA 95811-5226 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 27, 2015 · Amount on File |
| Deed Sale | Aug 27, 2015 · Amount on File |
| Deed Document Number | 2015122616 |
| Prior Transfer Date | Sep 3, 2013 |
| Prior Transfer Doc | 0L003/0322 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1237 Folsom St was $22,667, up 2.9% from the year before.
Source: San Francisco City assessment roll, as of September 8, 2026
| Type | Name |
|---|---|
| State | California |
| County / Municipality | San Francisco City |
| Unified School District | San Francisco Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,805,168 (+2%) Land $1,624,651 Building $180,517 | |
| 2025 | $22,667.00 (+2.95%) | $1,769,770 Land $1,592,797 Building $176,973 |
| 2024 | $22,018.00 (+1.74%) | |
| 2023 | $21,641.00 (+1.97%) | $1,701,049 Land $1,530,948 Building $170,101 |
| 2022 | $21,222.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 1237 Folsom St.
Source: FEMA National Flood Hazard Layer
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
The area around 1237 Folsom St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SFPUC CITY DISTRIBUTION DIVISION serves 848,019 people · EPA ID CA3810011 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2023 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 825 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Astound Broadband, GeoLinks, Google Fiber, T-Mobile.
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