San Francisco City property record for 251 6th St, San Francisco, CA 94103
| Property Type | R&D Facility, Laboratory |
|---|---|
| Details | 2 ba · 10,630 sqft · built 1946 |
| Lot Size | 0.003 acres (110 sqft) |
| Owner | Company Name on Record |
| Last Sale | $2,400,000 (Aug 2009) |
| Tax Bill | $47,445 (2025) |
| Deeds & Mortgages | Jan 2020 Mortgage |
| APN | 3732-074 |
| Primary APN | 3732-074 |
|---|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 2 Rooms |
| Stories | 2 Stories |
| Building Area | 10,630 sqft |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Architectural Style | Cape Cod |
| Exterior Material | Stucco |
| Construction Type | Masonry / Concrete Block |
| Fire Resistance | Masonry Walls, Wood Interior |
| Roof Type | Flat |
| Roof Material | Tar & Gravel |
| Lot Area | 110 sqft (0.003 acres) |
| Street Address | 251 6TH ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94103-4028 |
| Property Category | Industrial |
| Property Type | Industrial > R&D Facility, Laboratory |
| Local Zoning Code | NCT3 |
| Legal Description | TRACT 100 VARA B |
| Legal Subdivision | PORTION ONE HUNDRED VARA BLOCK #382 |
| Legal Tract | 100 |
| Legal Block | 3732 |
| Legal Lot Number | 74 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | SOMA-POTRERO-MISSION BAY |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 17804 |
Source: San Francisco City records, as of September 8, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 2355 WESTWOOD BLVD, LOS ANGELES, CA 90064-2109 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 25, 2009 · Amount on Record |
| Deed Sale | Aug 25, 2009 · Amount on Record |
| Prior Sale | Jul 19, 2000 · Amount on Record |
| Deed Document Number | 2009820124 |
| Deed Book / Page | 963 / 136 |
| Last Transfer Date | Jan 6, 2020 |
| Transfer Doc | K888213 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Property Address | 251 6TH ST, SAN FRANCISCO, CA 94103-4028 |
| Instrument Date | Jan 6, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Feb 6, 2020 |
| Title Company | STEWART TITLE, STEWART TITLE/CA |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 251 6TH ST SAN FRANCISCO CA 941034028, SAN FRANCISCO, CA 94103-4028 |
| Document Number | K88800214 |
|---|---|
| Date | Jan 10, 2020 |
| Instrument | K888214 |
| Name | FIRST CITIZENS BK |
|---|---|
| Type | Bank |
| Address | PO BOX 26592, RALEIGH, NC 27611-6592 |
| Amount | Amount Recorded |
|---|
| Rate Type | Fixed Rate |
|---|
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 | $3,159,936 (+2%) Land $1,974,960 Building $1,184,976 | |
| 2025 | $47,445.00 (+2.92%) | $3,097,968 (+4.04%) Land $1,936,231 Building $1,161,737 |
| 2024 | $46,098.00 (+1.81%) | |
| 2023 | $45,280.00 (+2.11%) | $2,977,672 Land $1,861,046 Building $1,116,626 |
| 2022 | $44,343.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures