1 POST ST
Commercial Office · San Francisco
At a glance
1 POST ST in San Francisco, CA is listed on the San Francisco property roll as “Commercial Office”, block/lot 0311015. The roll records 488,882 sq ft of building area, 38 floors, a 1969 build year and an assessed value of $278,367,923. 93 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
Floors 1-2 show no business on record — 2 unbroken floors, the longest such stretch here. Also quiet: 5-6, 12-13, 19-20, 37-38. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.
- 38no record
- 37no record
- 361 on record
- 35no record
- 341 on record
- 333 on record
- 321 on record
- 3114 on record
- 301 on record
- 297 on record
- 281 on record
- 27no record
- 263 on record
- 251 on record
- 242 on record
- 23no record
- 222 on record
- 213 on record
- 20no record
- 19no record
- 181 on record
- 171 on record
- 161 on record
- 152 on record
- 142 on record
- 13no record
- 12no record
- 111 on record
- 10no record
- 911 on record
- 8no record
- 76 on record
- 6no record
- 5no record
- 41 on record
- 31 on record
- 2no record
- 1no record
Floors are read from suite numbers on San Francisco business records (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
Public record — 93 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Mechanical Orchard, Inc | FL 36 | Sep 2026 | SF registered business | address · medium |
| Wpp Media | STE 1700 | Sep 2026 | SF registered business | address · medium |
| Endeavor Ai, Inc | STE 1400 | Mar 2026 | SF registered business | address · medium |
| Zuckerman & Zuckerman Llp | STE 2685 | Jan 2026 | SF registered business | address · medium |
| Omega Math | STE 925 | Dec 2025 | SF registered business | address · medium |
| True Residential Leasing | STE 3100 | Oct 2025 | SF registered business | address · medium |
| True Residential | STE 3100 | Oct 2025 | SF registered business | address · medium |
| Shortwave | STE 3100 | Oct 2025 | SF registered business | address · medium |
| Altruist Corp | STE 1100 | Aug 2025 | SF registered business | address · medium |
| Poesia Cafe | STE RETA | Jul 2025 | SF registered business | address · medium |
| Ssl Law Firm Llp | STE 2100 | Feb 2025 | SF registered business | address · medium |
| Swoop | STE 2250 | Jan 2025 | SF registered business | address · medium |
| Five 9 Inc | STE 1600 | Sep 2024 | SF registered business | address · medium |
| Loop Payments Inc. | FL 15 | Jun 2024 | SF registered business | address · medium |
| Haynes And Boone, Llp | STE 2800 | May 2024 | SF registered business | address · medium |
| Browserbase Inc | FL 15 | Jan 2024 | SF registered business | address · medium |
| Champlain Capital Investors IV, LLC | STE 925 | Sep 2023 | SF registered business | address · medium |
| Champlain Capital Management IV, LLC | STE 925 | Sep 2023 | SF registered business | address · medium |
| Champlain Capital Partners IV Lp | STE 925 | Sep 2023 | SF registered business | address · medium |
| Aipac | STE 2650 | Feb 2023 | SF registered business | address · medium |
| Veritasnow | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Veritas | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Veritas Investments | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Greentree Property | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Greentree Property Management, Inc. | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Retailsf | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Greentree | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Greentree Property Management | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Veritas Investments, Inc. | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Rentsfnow | STE 3100 | Oct 2022 | SF registered business | address · medium |
| Rentsfnow, Inc. | STE 3100 | Oct 2022 | SF registered business | address · medium |
| At-Bay Inc | FL 14 | Sep 2022 | SF registered business | address · medium |
| Pkn Manager LLC | STE 3300 | Sep 2022 | SF registered business | address · medium |
| 150 Post Street LLC | STE 3300 | Sep 2022 | SF registered business | address · medium |
| Tmg Partners R.E. LLC | STE 3300 | Sep 2022 | SF registered business | address · medium |
| Jvs - Sf Bay Area | — | Aug 2022 | SF registered business | address · medium |
| Jewish Vocational Service | STE 700 | Aug 2022 | SF registered business | address · medium |
| Jvs - San Francisco | STE 700 | Aug 2022 | SF registered business | address · medium |
| Jewish Vocational Services | STE 700 | Aug 2022 | SF registered business | address · medium |
| Jvs - SF | STE 700 | Aug 2022 | SF registered business | address · medium |
| Jewish Vocational And Career Counseling Service | STE 700 | Aug 2022 | SF registered business | address · medium |
| Jvs | STE 700 | Aug 2022 | SF registered business | address · medium |
| Vedder Price | STE 2400 | Jun 2022 | SF registered business | address · medium |
| Gem Software, Inc. | FL 18 | Jan 2022 | SF registered business | address · medium |
| Recovery Services International, Inc | FL 34 | Oct 2020 | SF registered business | address · medium |
| Clune Construction Company Lp | STE 300 | Sep 2020 | SF registered business | address · medium |
| Berkadia Commercial Mortgage LLC | — | Jul 2020 | SF registered business | address · medium |
| Berkadia Commercial Mortgage Inc | — | Jul 2020 | SF registered business | address · medium |
| Goodman Neuman Hamilton Llp | STE 2100 | Jul 2020 | SF registered business | address · medium |
| Berkadia Real Estate Advisors Inc. | — | Jul 2020 | SF registered business | address · medium |
| Myhealthteams, Inc. - Office | STE 2250 | Feb 2020 | SF registered business | address · medium |
| 1 Post Street Tenant LLC | — | Oct 2019 | SF registered business | address · medium |
| Gooddata Corporation | STE 400 | Jun 2019 | SF registered business | address · medium |
| Champlain Capital Management IIi, LLC | STE 925 | Apr 2019 | SF registered business | address · medium |
| Champlain Capital Investors IIi, LLC | STE 925 | Apr 2019 | SF registered business | address · medium |
| Champlain Capital Partners IIi, L.P. | STE 925 | Apr 2019 | SF registered business | address · medium |
| Fitch Ratings Inc | STE 900 | May 2018 | SF registered business | address · medium |
| Bprep One Post LLC | — | Apr 2017 | SF registered business | address · medium |
| Vendor Direct Solutions LLC | STE 2500 | Jun 2016 | SF registered business | address · medium |
| Housatonic Partners Management Company, Inc | STE 2600 | Jan 2016 | SF registered business | address · medium |
| Hawkins Parnell & Young, Llp | STE 2400 | Jan 2016 | SF registered business | address · medium |
| Binis Kitchen LLC | — | Nov 2015 | SF registered business | address · medium |
| Champlain Total Capital Management LLC | STE 925 | Aug 2014 | SF registered business | address · medium |
| Alfa Tech Consult Enterprises | RM 2200 | Jul 2014 | SF registered business | address · medium |
| Champlain Capital Partners II, L.P. | STE 925 | Apr 2014 | SF registered business | address · medium |
| Champlain Capital Investors II, LLC | STE 925 | Apr 2014 | SF registered business | address · medium |
| Roadside Rotisserie Corporation / Country Grill | — | Jan 2014 | SF registered business | address · medium |
| Oncology Portal LLC, The | — | Jan 2013 | SF registered business | address · medium |
| Mckesson Specialty Healty Phar | — | Jan 2012 | SF registered business | address · medium |
| Onmark, Inc | — | Jan 2012 | SF registered business | address · medium |
| Mckesson Pharmacy Optimization | — | Jan 2012 | SF registered business | address · medium |
| Us Oncology Corporate Inc | — | Jan 2012 | SF registered business | address · medium |
| Cbre Inc | FL 32 | Jan 2011 | SF registered business | address · medium |
| Mckesson Drug Company | — | Jul 2010 | SF registered business | address · medium |
| Mckesson Specialty Dist LLC | — | Jan 2010 | SF registered business | address · medium |
| Mckesson Technology Inc | — | Jan 2010 | SF registered business | address · medium |
| Mckesson Pharmacy Systems | — | Jan 2010 | SF registered business | address · medium |
| Mckesson Specialty Arizona | STE 2950 | Jun 2009 | SF registered business | address · medium |
| Mckesson Plasma & Biologics LLC | STE 2950 | May 2009 | SF registered business | address · medium |
| Northstar Rx LLC | — | Jan 2009 | SF registered business | address · medium |
| Pst Services Inc | — | Jan 2009 | SF registered business | address · medium |
| Mckesson Medical Surgical | STE 2950 | Jan 2009 | SF registered business | address · medium |
| Mckesson Specialty Care | STE 2950 | Jan 2009 | SF registered business | address · medium |
| Ndc Health Corporation | — | Jan 2009 | SF registered business | address · medium |
| Mckesson Information Solutions | — | Jan 2003 | SF registered business | address · medium |
| Mckesson Trading Company | STE 2950 | Jun 2000 | SF registered business | address · medium |
| Mckesson Health Solutions Hold | STE 2950 | Jun 2000 | SF registered business | address · medium |
| Mckesson Health Systems | STE 2950 | Jun 2000 | SF registered business | address · medium |
| Mckesson Capital Corporation | — | May 1996 | SF registered business | address · medium |
| Mckesson Service | — | Sep 1995 | SF registered business | address · medium |
| Mckesson Corporation | — | Jan 1990 | SF registered business | address · medium |
| Mckesson Hboc Inc | FL 30 | Dec 1989 | SF registered business | address · medium |
| Kelly Temp Services | STE 2150 | Oct 1968 | SF registered business | address · medium |
San Francisco assessment roll
Parcel record
| Field | Value |
|---|---|
| block/lot | 0311015 |
| Site address | 1 POST ST |
| Land use (DOR) | COMO — Commercial Office |
| Building area (actual) | 488,882 sq ft |
| Floors / units / buildings | 38 / — / — |
| Lot size | 23,118 sq ft |
| Year built | 1969 |
| Zoning (primary) | — |
| Land value | $99,593,542 |
| Building value | — |
| Total assessed value | $278,367,923 |
Recorded owner (assessment roll)
No owning organisation shown. Where the county roll names a private individual, the name and mailing address are not published here.
Location
- Address
- 1 POST ST
- City
- San Francisco
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1 POST ST compare with other San Francisco office buildings?
At 488,882 sq ft, 1 POST ST is about 6 times the size of the average office building on the San Francisco roll, which comes to 75,252 sq ft across 1,254 buildings.
With 38 floors it is one of 199 office buildings of ten or more floors in the metro.
Its assessed value works out to $569 per square foot of building area, against $576 across all office floor area on the roll.
Does the owner of 1 POST ST hold other San Francisco office property?
San Francisco's published roll does not include owner names, so no owner is shown for any parcel in this metro.
What has happened at 1 POST ST recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Commercial Office” mean for this parcel?
The San Francisco roll classifies block/lot 0311015 as “Commercial Office” (use code COMO). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 1 POST ST?
San Francisco's published roll does not include owner names, so no owner is shown.
What companies have offices at 1 POST ST?
93 active business locations at this building appear in San Francisco public records, including Mechanical Orchard, Inc, Wpp Media, Endeavor Ai, Inc, Zuckerman & Zuckerman Llp, Omega Math. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1 POST ST?
The San Francisco roll records 488,882 sq ft of building area, 38 floors, a build year of 1969. It sits on a 23,118 sq ft lot.
What is the assessed value of 1 POST ST?
$278,367,923 on the San Francisco roll. Assessed values are taxable-roll figures, not market prices.
What is the block/lot for 1 POST ST?
Block/lot 0311015, site address 1 POST ST, San Francisco. It is the key to look the parcel up in the Assessor secured roll (San Francisco).
More around 1 POST ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- San Francisco — Assessor secured roll (use classes, stories, areas, assessed values — California law excludes owner names from open data, and no bulk sale-price source exists), the universal registered-business roll with suite-level addresses, and current energy benchmarking joined by parcel.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
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Dataset updated . Source: San Francisco assessment roll, block/lot 0311015.
About this data
Source: Assessor secured roll (San Francisco), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “1 POST ST, San Francisco, CA (block/lot 0311015)”, https://buildingcensus.com/offices/sf/office-building-00b0f2e1 (data as of September 20, 2026).