3711L MARKET ST
OFF BLD N/PKG N/COM MASON · Philadelphia · 19104
At a glance
3711L MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/PKG N/COM MASON”, OPA account 883073690. The roll records 356,362 sq ft of building area, 14 floors, a 2015 build year and an assessed value of $97,113,000.
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 | 883073690 |
| Site address | 3711L MARKET ST |
| Land use (DOR) | DD0 — OFF BLD N/PKG N/COM MASON |
| Building area (actual) | 356,362 sq ft |
| Floors / units / buildings | 14 / — / — |
| Lot size | — |
| Year built | 2015 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $97,113,000 |
Recorded owner (assessment roll)
WEXFORD-UCSC 3737 LLC
Owner mailing address: 801 N BALTIMORE ST, BALTIMORE, MD, 21201
Location
- Address
- 3711L MARKET ST
- City
- Philadelphia
- ZIP
- 19104
- Coordinates
- 39.95696, -75.19702
Within ~650 m
Nearby office buildings
- 3521-35 MARKET ST2 tenants
473,400 sq ft · 1974
- 25 N 38TH ST0 tenants
428,400 sq ft · 13 fl · 2024
- 3655-75 MARKET ST4 tenants
295,293 sq ft · 14 fl · 2018
- 3701 MARKET ST1 tenants
172,000 sq ft · 2000
- 3722-46 MARKET ST0 tenants
165,000 sq ft · 1993
- 3440 MARKET ST2 tenants
130,002 sq ft · 6 fl · 1981
How does 3711L MARKET ST compare with other Philadelphia office buildings?
At 356,362 sq ft, 3711L MARKET ST is about 10 times the size of the average office building on the Philadelphia roll, which comes to 36,284 sq ft across 2,470 buildings.
With 14 floors it is one of 82 office buildings of ten or more floors in the metro.
Its assessed value works out to $273 per square foot of building area, against $163 across all office floor area on the roll.
What does “OFF BLD N/PKG N/COM MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883073690 as “OFF BLD N/PKG N/COM MASON” (use code DD0). 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 3711L MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is WEXFORD-UCSC 3737 LLC. Owner mailing address on file: 801 N BALTIMORE ST, BALTIMORE, MD, 21201.
What companies have offices at 3711L 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 3711L MARKET ST?
The Philadelphia roll records 356,362 sq ft of building area, 14 floors, a build year of 2015.
What is the assessed value of 3711L MARKET ST?
$97,113,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 3711L MARKET ST?
OPA account 883073690, site address 3711L MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 3711L 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 883073690.
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, “3711L MARKET ST, Philadelphia, PA (OPA account 883073690)”, https://buildingcensus.com/offices/philly/office-building-bfee8ae3 (data as of October 10, 2026).