221 MAIN ST
Commercial Office · San Francisco
Derived from suite and floor strings in the occupancy records
Which floors show activity
Floors 14-15 show no business on record — 2 unbroken floors, the longest such stretch here. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.
- 163 on record
- 15no record
- 14no record
- 134 on record
- 121 on record
- 11no record
- 101 on record
- 91 on record
- 83 on record
- 77 on record
- 64 on record
- 51 on record
- 42 on record
- 32 on record
- 22 on record
- 11 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
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 — 36 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Advent Software Inc | STE 1200 | Sep 2026 | sf_reg | address · medium |
| Affirm | FL 6 | Jul 2026 | sf_reg | address · medium |
| 221 Main St. | FL 6 | Jul 2026 | sf_reg | address · medium |
| Affirm Identity | FL 6 | Jul 2026 | sf_reg | address · medium |
| 221 Main St., Suite 601 | STE 601 | Jul 2026 | sf_reg | address · medium |
| Statkraft Us LLC | STE 1630 | Mar 2025 | sf_reg | address · medium |
| The Lightbox Cafe | — | Jan 2025 | sf_reg | address · medium |
| Pomelo Group Usa, Inc. | STE 770 | Nov 2024 | sf_reg | address · medium |
| Ginger Labs Main | STE 480 | Feb 2024 | sf_reg | address · medium |
| Uncork Capital | STE 1600 | Jan 2024 | sf_reg | address · medium |
| Provable Inc | STE 420 | Nov 2023 | sf_reg | address · medium |
| Fulcrum Tech Incorporated | STE 770 | May 2023 | sf_reg | address · medium |
| Delinea Inc. | STE 1300 | Mar 2023 | sf_reg | address · medium |
| Bon Appetit Management Co | FL 8 | Mar 2023 | sf_reg | address · medium |
| Moveworks, Inc. | STE 780 | Mar 2023 | sf_reg | address · medium |
| The Light Box Cafe And Catering | — | Mar 2023 | sf_reg | address · medium |
| Pomelo International | STE 770 | Mar 2023 | sf_reg | address · medium |
| Amwins Insurance Brokerage LLC | STE 580 | Nov 2022 | sf_reg | address · medium |
| Morgan Stanley & Co LLC | STE 1340 | Jan 2021 | sf_reg | address · medium |
| Bento For Business | STE 1325 | Jun 2018 | sf_reg | address · medium |
| Solium Plan Managers LLC | STE 1340 | Apr 2018 | sf_reg | address · medium |
| Charles River Associates | STE 1650 | Jan 2017 | sf_reg | address · medium |
| Horoscope.Com Inc | STE 700 | Oct 2014 | sf_reg | address · medium |
| Astrocenter.Com | STE 700 | Oct 2014 | sf_reg | address · medium |
| Prosper Marketplace, Inc. | FL 3 | Aug 2014 | sf_reg | address · medium |
| Prosper Funding LLC | FL 3 | Aug 2014 | sf_reg | address · medium |
| Teksystems Inc. | STE 200 | Feb 2014 | sf_reg | address · medium |
| Godfrey Dadich Partners LLC | RM 2 | Nov 2013 | sf_reg | address · medium |
| Zenith American Solutions Inc | FL 2 | Jul 2013 | sf_reg | address · medium |
| Tower Valet Parking Inc | — | Jun 2013 | sf_reg | address · medium |
| Ingenio LLC | STE 700 | May 2013 | sf_reg | address · medium |
| Docusign Inc | RM #1000 | Mar 2013 | sf_reg | address · medium |
| Cbre Inc | STE 100 | Jan 2013 | sf_reg | address · medium |
| Ricondo & Associates Inc | STE 888 | Jun 2012 | sf_reg | address · medium |
| Town & Country Valuation | STE 888 | Jul 2006 | sf_reg | address · medium |
| Independent Tax Represent LLC | STE 945 | Jul 2004 | sf_reg | address · medium |
San Francisco assessment roll
Parcel record
| Field | Value |
|---|---|
| block/lot | 3740034 |
| Site address | 221 MAIN ST |
| Land use (DOR) | COMO — Commercial Office |
| Building area (actual) | 434,078 sq ft |
| Floors / units / buildings | 16 / — / — |
| Lot size | 46,912 sq ft |
| Year built | 1973 |
| Zoning (primary) | — |
| Land value | $153,000,000 |
| Building value | — |
| Total assessed value | $382,500,000 |
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
- 221 MAIN ST
- City
- San Francisco
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
Frequently asked questions
Who owns 221 MAIN 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 221 MAIN ST?
36 active business locations at this building appear in San Francisco public records, including Advent Software Inc, Affirm, 221 Main St., Affirm Identity, 221 Main St., Suite 601. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 221 MAIN ST?
The county assessment roll records 434,078 sq ft of building area across 16 floors, built in 1973, on a 46,912 sq ft lot, with a current assessed value of $382,500,000.
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami BE305 building-energy benchmarking disclosures — What the building reported about its own performance: energy intensity, an ENERGY STAR score, reported emissions and water use, under the City of Miami's benchmarking ordinance.
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 3740034.