BuildingCensus

100 MONTGOMERY ST

Commercial Office · San Francisco

Active records here
51
business-tax + registry entities
Building area
428,295
sq ft (county roll)
Floors
25
county roll
Year built
1955
vintage
Assessed value
$309.5M
current roll
Assessed / sq ft
$723
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

Derived from suite and floor strings in the occupancy records

Which floors show activity

17 of 25 floors show activityfrom 42 suite-numbered receipts

Floors 8-10 show no business on record — 3 unbroken floors, the longest such stretch here. Also quiet: 12-13. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.

  1. 253 on record
  2. 241 on record
  3. 23no record
  4. 222 on record
  5. 211 on record
  6. 204 on record
  7. 193 on record
  8. 183 on record
  9. 176 on record
  10. 161 on record
  11. 151 on record
  12. 144 on record
  13. 13no record
  14. 12no record
  15. 111 on record
  16. 10no record
  17. 9no record
  18. 8no record
  19. 72 on record
  20. 61 on record
  21. 54 on record
  22. 4no record
  23. 33 on record
  24. 2no record
  25. 12 on record

Floors are read from suite numbers on Miami-Dade business-tax receipts (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

ENERGY STAR score
82
top quartile nationally
Site energy use
—
kBtu per sq ft per year
Reported emissions
—
tonnes CO₂e
Disclosed area
478,430
sq ft, 2025 filing

From the building's own filing under the City of Miami'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 — 51 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
OpendoorSTE 500May 2026sf_regaddress · medium
Homebuyer.ComSTE 500May 2026sf_regaddress · medium
FORVIS MAZARS, LLPvia Forvis Mazars, LlpSTE 1600Feb 2026sf_regaddress · medium
PFM FINANCIAL ADVISORS LLCvia Pfm Financial Advisors, LLCSTE 2150Jun 2025sf_regaddress · medium
Edgewood Partners Insurance CenterSTE 2000Apr 2025sf_regaddress · medium
Levy, Erlanger & Company LlpSTE 715Jan 2025sf_regaddress · medium
MithrlSTE 1700Dec 2024sf_regaddress · medium
Opendoor Labs Inc.STE 500Jun 2024sf_regaddress · medium
Serval Inc.STE 2500Mar 2024sf_regaddress · medium
Iku SushiSTE 120Jul 2023sf_regaddress · medium
ARCADIS, A CALIFORNIA PARTNERSHIPvia Arcadis, A California PartnershipSTE 300Mar 2023sf_regaddress · medium
Ard IncSTE 2050Apr 2022sf_regaddress · medium
Trinity Life SciencesFL 18Apr 2022sf_regaddress · medium
GLUMACvia GlumacSTE 2050Jul 2021sf_regaddress · medium
EPSILON DATA MANAGEMENT LLCvia Epsilon Data Management LLCSTE 1500Jan 2021sf_regaddress · medium
Earnup Inc.STEApr 2020sf_regaddress · medium
Snapfish LLCSTE 1430Jan 2020sf_regaddress · medium
Qalam San FranciscoFL 18Dec 2019sf_regaddress · medium
Sustainable Grantmaking Partners Fund—Dec 2019sf_regaddress · medium
M Booth & Associates LLC—Jan 2019sf_regaddress · medium
Amuseio IncSTE 1780May 2018sf_regaddress · medium
Vivino Inc.STE 2000Apr 2018sf_regaddress · medium
Snapdocs, IncSTE 2400Apr 2018sf_regaddress · medium
Sher Edling LlpSTE 1410Oct 2017sf_regaddress · medium
Acp Management Holdco LLC Dba, Altamont Capital PartnersSTE 1760Sep 2017sf_regaddress · medium
Essen International LtdSTE 1780Jul 2016sf_regaddress · medium
100 Montgomery Sf LLCSTE 1420Jul 2016sf_regaddress · medium
Vanbarton GroupSTE 1420Jul 2016sf_regaddress · medium
BenefitterRM 1725Dec 2015sf_regaddress · medium
BLEND LABS INCvia Blend Labs IncSTE 2500Sep 2015sf_regaddress · medium
Perkins Eastman Architects Dpc2300Aug 2015sf_regaddress · medium
Integrum IncSTE 1780May 2015sf_regaddress · medium
BeyondSTE 1102Feb 2015sf_regaddress · medium
Open AlertsSTE 1900Jan 2015sf_regaddress · medium
StreamlabsSTE 1900Jan 2015sf_regaddress · medium
VulcunSTE 1900Jan 2015sf_regaddress · medium
Launce L GambleRM 650Sep 2014sf_regaddress · medium
Ageless Men's HealthSTE 2290Sep 2013sf_regaddress · medium
Proper FoodUNIT 116May 2013sf_regaddress · medium
Segal Advisors IncSTE 500Dec 2012sf_regaddress · medium
Community Counselling ServiceSTE 2270Jun 2012sf_regaddress · medium
Hansoft North America IncSTE 1780Jun 2012sf_regaddress · medium
CITY NATIONAL BANKvia City National Bank—Feb 2012sf_regaddress · medium
Veeva Systems Inc—Mar 2011sf_regaddress · medium
Digital Dental PracticeSTE 350May 2010sf_regaddress · medium
Ec San FranciscoFL 18May 2010sf_regaddress · medium
RISK PLACEMENT SERVICES, INC.via Risk Placement Services IncSTE 715May 2010sf_regaddress · medium
Radius Gmr LLC—Jan 2010sf_regaddress · medium
ARCADISvia ArcadisSTE 300Mar 2009sf_regaddress · medium
Veolia Sustainable Buildings Usa West, Inc.STE 600Mar 2009sf_regaddress · medium
S H Cowell FoundationSTE 2570Jan 2009sf_regaddress · medium

San Francisco assessment roll

Parcel record

FieldValue
block/lot0289005
Site address100 MONTGOMERY ST
Land use (DOR)COMO — Commercial Office
Building area (actual)428,295 sq ft
Floors / units / buildings25 / 1 / —
Lot size20,264 sq ft
Year built1955
Zoning (primary)—
Land value$185,448,244
Building value—
Total assessed value$309,546,583

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
100 MONTGOMERY ST
City
San Francisco

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

Frequently asked questions

Who owns 100 MONTGOMERY ST?

No owning organisation is shown for this parcel. Where the county roll names a private individual as owner, BuildingCensus does not publish the name or mailing address.

What companies have offices at 100 MONTGOMERY ST?

51 active business locations at this building appear in San Francisco public records, including Opendoor, Homebuyer.Com, FORVIS MAZARS, LLP, PFM FINANCIAL ADVISORS LLC, Edgewood Partners Insurance Center. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 100 MONTGOMERY ST?

The county assessment roll records 428,295 sq ft of building area across 25 floors, built in 1955, on a 20,264 sq ft lot, with a current assessed value of $309,546,583.

Everything here comes from public records, and public records go stale. If you know better, say so.

Data provenance — public records only

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 0289005.