801 MARKET ST
COM CONDO 1 STY MASONRY · Philadelphia · 19107
At a glance
801 MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “COM CONDO 1 STY MASONRY”, OPA account 883013400. The roll records 60,662 sq ft of building area, 1 floors, a 1928 build year and an assessed value of $9,160,600.
Public record — 0 matched business locations
Tenants & business locations
No active business locations at this address appear in the public records ingested so far. That is a statement about the records, not the building: tenants without a county business-tax receipt or a Florida registration at this address are invisible to public data.
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883013400 |
| Site address | 801 MARKET ST |
| Land use (DOR) | 6A0 — COM CONDO 1 STY MASONRY |
| Building area (actual) | 60,662 sq ft |
| Floors / units / buildings | 1 / — / — |
| Lot size | — |
| Year built | 1928 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $9,160,600 |
Recorded owner (assessment roll)
PHILADELPHIA OFFICE 2016
Owner mailing address: 675 3RD AVE, NEW YORK, NY, 10017
2 Philadelphia office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 801 MARKET ST
- City
- Philadelphia
- ZIP
- 19107
- Coordinates
- 39.95176, -75.15408
Within ~650 m
Nearby office buildings
- 170 S INDEPENDENCE MALL W9 tenants
1,102,992 sq ft · 12 fl · 1911
- 508-32 WALNUT ST2 tenants
986,960 sq ft · 20 fl · 1918
- 701-39 MARKET ST6 tenants
845,230 sq ft · 5 fl · 1893
- 150 N INDEPENDENCE MALL W2 tenants
816,208 sq ft · 8 fl · 1976
- 1101-11 MARKET ST3 tenants
747,200 sq ft · 32 fl · 1984
- 819-41 CHESTNUT ST1 tenants
693,000 sq ft · 12 fl · 1926
How does 801 MARKET ST compare with other Philadelphia office buildings?
At 60,662 sq ft, 801 MARKET ST is about 67% larger than the average office building on the Philadelphia roll, which comes to 36,284 sq ft across 2,470 buildings.
Its assessed value works out to $151 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 801 MARKET ST hold other Philadelphia office property?
2 Philadelphia office properties (2 parcels, 410.7K sq ft) are recorded to an owner sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What does “COM CONDO 1 STY MASONRY” mean for this parcel?
The Philadelphia roll classifies OPA account 883013400 as “COM CONDO 1 STY MASONRY” (use code 6A0). 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 801 MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is PHILADELPHIA OFFICE 2016. Owner mailing address on file: 675 3RD AVE, NEW YORK, NY, 10017.
What companies have offices at 801 MARKET ST?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is 801 MARKET ST?
The Philadelphia roll records 60,662 sq ft of building area, 1 floors, a build year of 1928.
What is the assessed value of 801 MARKET ST?
$9,160,600 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 801 MARKET ST?
OPA account 883013400, site address 801 MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 801 MARKET ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Philadelphia — Office of Property Assessment nightly roll (owner and mailing address on every parcel), Department of Records deed transfers with consideration and counterparties, and L&I business licences joined by OPA account. The universal Commercial Activity licence roll publishes no premises addresses, so occupancy shows regulated activities 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: Philadelphia assessment roll, OPA account 883013400.
About this data
Source: Office of Property Assessment nightly roll (Philadelphia), as published October 10, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “801 MARKET ST, Philadelphia, PA (OPA account 883013400)”, https://buildingcensus.com/offices/philly/office-building-9f1b856e (data as of October 10, 2026).