345 SPEAR ST
Commercial Office · San Francisco
At a glance
345 SPEAR ST in San Francisco, CA is listed on the San Francisco property roll as “Commercial Office”, block/lot 3744003. The roll records 426,760 sq ft of building area, 7 floors, a 1990 build year and an assessed value of $172,328,363. 28 active business locations at this address appear in public records.
Public record — 28 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Ba @ Google Mk 5x1 | FL 5 | Jun 2026 | SF registered business | address · medium |
| Ba @ Google Mian Hall Mk 5x1 | FL 5 | May 2026 | SF registered business | address · medium |
| Ba @ Google A Conscious Cafe 3n4 | FL 3 | May 2026 | SF registered business | address · medium |
| Ba @ Google Fitness Mk 2k3 | FL 2 | May 2026 | SF registered business | address · medium |
| Ba @ Google Music Mk 5nm | FL 5 | May 2026 | SF registered business | address · medium |
| Ba @ Google Dungeon B | BSMT | May 2026 | SF registered business | address · medium |
| Ba @ Google Mk 3a2 | FL 3 | May 2026 | SF registered business | address · medium |
| Ba @ Google Mk 2a4 | FL 2 | May 2026 | SF registered business | address · medium |
| Ba @ Google Oceanview Mk 5c7 | FL 5 | May 2026 | SF registered business | address · medium |
| Ba @ Google Mk 4ja | FL 4 | May 2026 | SF registered business | address · medium |
| Ba @ Google W6 Coffee Bar 6r6 | FL 6 | May 2026 | SF registered business | address · medium |
| Ba @ Google Mk 4a2 | FL 4 | May 2026 | SF registered business | address · medium |
| Ba @ Google W6 Mk 6a8 | FL 6 | May 2026 | SF registered business | address · medium |
| Ba @ Google Mk 7a3 | FL 7 | May 2026 | SF registered business | address · medium |
| Ba @ Google Coffee & Tea Bar 3p0a | FL 3 | May 2026 | SF registered business | address · medium |
| Ba @ Google W6 6s5 | FL 6 | May 2026 | SF registered business | address · medium |
| Hills Plaza Garage | — | Jan 2025 | SF registered business | address · medium |
| PREMISE HEALTH EMPLOYER SOLUTIONS, LLCvia Premise Health Employer Solutions, LLC | — | May 2024 | SF registered business | address · medium |
| Google Health And Wellness Center | FL 5 | Mar 2024 | SF registered business | address · medium |
| Carbon Health | STE 120 | Aug 2020 | SF registered business | address · medium |
| Google Inc | FL 43135 | Jan 2017 | SF registered business | address · medium |
| Abm Onsite Services-West Inc | — | Dec 2014 | SF registered business | address · medium |
| Guckenheimer At Google SF | — | Dec 2012 | SF registered business | address · medium |
| Astreya Partners Inc | — | Jun 2010 | SF registered business | address · medium |
| Expeditors Intl Of Washington | — | Jan 2008 | SF registered business | address · medium |
| Ppf Off 345 Spear Street Lp | STE 124 | Aug 2004 | SF registered business | address · medium |
| Gps Services | — | Feb 2004 | SF registered business | address · medium |
| Gps Consumer Direct | — | Jan 2004 | SF registered business | address · medium |
San Francisco assessment roll
Parcel record
| Field | Value |
|---|---|
| block/lot | 3744003 |
| Site address | 345 SPEAR ST |
| Land use (DOR) | COMO — Commercial Office |
| Building area (actual) | 426,760 sq ft |
| Floors / units / buildings | 7 / — / — |
| Lot size | 89,231 sq ft |
| Year built | 1990 |
| Zoning (primary) | — |
| Land value | $30,606,679 |
| Building value | — |
| Total assessed value | $172,328,363 |
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
- 345 SPEAR ST
- City
- San Francisco
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 345 SPEAR ST compare with other San Francisco office buildings?
At 426,760 sq ft, 345 SPEAR 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.
Its assessed value works out to $404 per square foot of building area, against $576 across all office floor area on the roll.
Does the owner of 345 SPEAR 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 does “Commercial Office” mean for this parcel?
The San Francisco roll classifies block/lot 3744003 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 345 SPEAR ST?
San Francisco's published roll does not include owner names, so no owner is shown.
What companies have offices at 345 SPEAR ST?
28 active business locations at this building appear in San Francisco public records, including Ba @ Google Mk 5x1, Ba @ Google Mian Hall Mk 5x1, Ba @ Google A Conscious Cafe 3n4, Ba @ Google Fitness Mk 2k3, Ba @ Google Music Mk 5nm. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 345 SPEAR ST?
The San Francisco roll records 426,760 sq ft of building area, 7 floors, a build year of 1990. It sits on a 89,231 sq ft lot.
What is the assessed value of 345 SPEAR ST?
$172,328,363 on the San Francisco roll. Assessed values are taxable-roll figures, not market prices.
What is the block/lot for 345 SPEAR ST?
Block/lot 3744003, site address 345 SPEAR ST, San Francisco. It is the key to look the parcel up in the Assessor secured roll (San Francisco).
More around 345 SPEAR 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 3744003.
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, “345 SPEAR ST, San Francisco, CA (block/lot 3744003)”, https://buildingcensus.com/offices/sf/office-building-d1bcc932 (data as of September 20, 2026).