San Francisco City property record for 1 Post St, San Francisco, CA 94104
| Property Type | Commercial Office |
|---|---|
| Details | 78 ba · 488,882 sqft · built 1969 |
| Lot Size | 0.005 acres (231 sqft) |
| Owner | Company Name on File |
| Last Sale | $267,272,727 (Mar 2017) |
| Tax Bill | $3,485,447 (2025) |
| Deeds & Mortgages | Mar 2017 Sale & Line of Credit |
| APN | 0311-015 |
| Primary APN | 0311-015 |
|---|
| Full Baths | 78 Baths |
|---|---|
| Total Rooms | 400 Rooms |
| Stories | 38 Stories |
| Building Area | 488,882 sqft Gross Area |
| 1st Floor Area | 488,882 sqft |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Construction Type | Steel Frame |
| Lot Area | 231 sqft (0.005 acres) |
| Street Address | 1 POST ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94104-5201 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | C3O |
| Legal Description | TRACT 50 VARA BLK 76 |
| Legal Subdivision | 50 VARA BL 76 |
| Legal Tract | 50 |
| Legal Block | 311 |
| Legal Lot Number | 15 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | DOWNTOWN-NORTHEAST NEIGHBORHOODS-TREASURE ISLAND |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 11700 |
1 Post St, a commercial property, is owned by a company that acquired it in August 2020.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1 POST ST, 450, SAN FRANCISCO, CA 94104-5208 |
| 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 | Mar 31, 2017 · Amount on File |
| Deed Sale | Mar 31, 2017 · Amount on File |
| Prior Sale | May 15, 2007 |
| Deed Document Number | 2017428832 |
| Last Transfer Date | Aug 10, 2020 |
| Transfer Doc | 2020064089 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Recording Date | Mar 31, 2017 |
| Property Address | 1 POST ST, SAN FRANCISCO, CA 94104-5201 |
| Document Number | 0K42800832 |
| Instrument Date | Mar 31, 2017 |
| Instrument | K428832 |
| Transaction Type | Transfer |
| Record Updated | Jan 28, 2020 |
| Title Company | ATTORNEY ONLY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $7,350,000.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 1 POST ST SAN FRANCISCO CA 941045203, SAN FRANCISCO, CA 94104-5203 |
| Document Number | K42800833 |
|---|---|
| Date | Mar 31, 2017 |
| Instrument | K428833 |
| Name | UNITED OVERSEAS BK LTD NY AGCY |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 10% |
The 2025 property tax bill for 1 Post St was $3,485,447.
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 | $294,821,178 (+1.8%) Land $105,689,664 Building $189,131,514 | |
| 2025 | $3,485,447.00 | $289,613,983 Land $103,617,120 Building $185,996,863 |
| 2023 | $3,332,986.00 (+1.87%) | $278,367,923 Land $99,593,542 Building $178,774,381 |
| 2022 | $3,271,684.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 1 Post St; 2 flood insurance policies are in force nearby.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 2 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 1 Post 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 578 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 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Astound Broadband, AT&T, Etheric Networks, GeoLinks, Google Fiber, T-Mobile, Verizon.
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