4240-52 MARKET ST
OFF BLD N/COM W/PKG MASON · Philadelphia · 19104
At a glance
4240-52 MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/COM W/PKG MASON”, OPA account 883080615. The roll records 14,595 sq ft of building area, 1 floors, a 2012 build year and an assessed value of $4,016,200. 1 active business locations at this address appear in public records.
Public record — 1 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| 4240 MARKET STREET LLC (C/O WINIG ASSOC) | — | Oct 2012 | Philadelphia L&I licence | folio match · high |
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883080615 |
| Site address | 4240-52 MARKET ST |
| Land use (DOR) | DE0 — OFF BLD N/COM W/PKG MASON |
| Building area (actual) | 14,595 sq ft |
| Floors / units / buildings | 1 / — / — |
| Lot size | — |
| Year built | 2012 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $4,016,200 |
Recorded owner (assessment roll)
4240 MARKET ST LLC
Owner mailing address: 420 BAINBRIDGE ST, PHILADELPHIA, PA, 19147
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
- 4240-52 MARKET ST
- City
- Philadelphia
- ZIP
- 19104
- Coordinates
- 39.95743, -75.20772
Within ~650 m
Nearby office buildings
- 4145 CHESTNUT ST2 tenants
130,754 sq ft · 7 fl · 2024
- 30 N 41ST ST0 tenants
98,000 sq ft · 6 fl · 2012
- 4415 CHESTNUT ST2 tenants
57,300 sq ft · 5 fl · 2022
- 4023-27 CHESTNUT ST0 tenants
53,340 sq ft · 1896
- 4224 MARKET ST0 tenants
44,155 sq ft · 2 fl · 1960
- 4548 MARKET ST1 tenants
35,000 sq ft · 2 fl · 1940
How does 4240-52 MARKET ST compare with other Philadelphia office buildings?
At 14,595 sq ft, 4240-52 MARKET ST is about 60% smaller 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 $275 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 4240-52 MARKET ST hold other Philadelphia office property?
2 Philadelphia office properties (2 parcels, 31K sq ft) are recorded to 2 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What does “OFF BLD N/COM W/PKG MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883080615 as “OFF BLD N/COM W/PKG MASON” (use code DE0). 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 4240-52 MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is 4240 MARKET ST LLC. Owner mailing address on file: 420 BAINBRIDGE ST, PHILADELPHIA, PA, 19147.
What companies have offices at 4240-52 MARKET ST?
1 active business locations at this building appear in Philadelphia public records, including 4240 MARKET STREET LLC (C/O WINIG ASSOC). Public records under-count tenants that don't hold a local receipt or register the address.
How big is 4240-52 MARKET ST?
The Philadelphia roll records 14,595 sq ft of building area, 1 floors, a build year of 2012.
What is the assessed value of 4240-52 MARKET ST?
$4,016,200 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 4240-52 MARKET ST?
OPA account 883080615, site address 4240-52 MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 4240-52 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 883080615.
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, “4240-52 MARKET ST, Philadelphia, PA (OPA account 883080615)”, https://buildingcensus.com/offices/philly/office-building-7c754b3f (data as of October 10, 2026).