3151 MARKET ST
OFF BLD N/PKG N/COM MASON · Philadelphia · 19104
At a glance
3151 MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/PKG N/COM MASON”, OPA account 883000006. The roll records 49,803 sq ft of building area and an assessed value of $35,735,000. 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 |
|---|---|---|---|---|
| Brandywine 3151 Market REIT LLC (Brandywine 3151 Market LP) | — | Jul 2025 | Philadelphia L&I licence | folio match · high |
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883000006 |
| Site address | 3151 MARKET ST |
| Land use (DOR) | DD0 — OFF BLD N/PKG N/COM MASON |
| Building area (actual) | 49,803 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | — |
| Year built | — |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $35,735,000 |
Recorded owner (assessment roll)
ACADEMIC PROPERTIES INC
Owner mailing address: 3601 POWELTON AVE, PHILADELPHIA, PA, 19104
3 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
- 3151 MARKET ST
- City
- Philadelphia
- ZIP
- 19104
- Coordinates
- 39.95576, -75.18653
Within ~650 m
Nearby office buildings
- 2970 MARKET ST2 tenants
1,076,400 sq ft · 5 fl · 2008
- Cira Centre6 tenants
782,208 sq ft · 28 fl · 2005
- 3151L MARKET ST0 tenants
435,492 sq ft · 12 fl · 2025
- 3025-53 MARKET ST6 tenants
396,788 sq ft · 5 fl · 2020
- 119 S 31ST ST2 tenants
376,636 sq ft · 14 fl · 2022
- 2929L WALNUT ST1 tenants
319,590 sq ft · 18 fl · 2015
How does 3151 MARKET ST compare with other Philadelphia office buildings?
At 49,803 sq ft, 3151 MARKET ST is about 37% 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 $718 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 3151 MARKET ST hold other Philadelphia office property?
3 Philadelphia office properties (3 parcels, 614K 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 “OFF BLD N/PKG N/COM MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883000006 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 3151 MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is ACADEMIC PROPERTIES INC. Owner mailing address on file: 3601 POWELTON AVE, PHILADELPHIA, PA, 19104.
What companies have offices at 3151 MARKET ST?
1 active business locations at this building appear in Philadelphia public records, including Brandywine 3151 Market REIT LLC (Brandywine 3151 Market LP). Public records under-count tenants that don't hold a local receipt or register the address.
How big is 3151 MARKET ST?
The Philadelphia roll records 49,803 sq ft of building area.
What is the assessed value of 3151 MARKET ST?
$35,735,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 3151 MARKET ST?
OPA account 883000006, site address 3151 MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 3151 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 883000006.
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, “3151 MARKET ST, Philadelphia, PA (OPA account 883000006)”, https://buildingcensus.com/offices/philly/office-building-41d8a45b (data as of October 10, 2026).