3440 MARKET ST
OFF BLD N/COM W/PKG MASON · Philadelphia · 19104
At a glance
3440 MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/COM W/PKG MASON”, OPA account 883076510. The roll records 130,002 sq ft of building area, 6 floors, a 1981 build year and an assessed value of $39,100,000. 2 active business locations at this address appear in public records.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city'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 — 2 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| UNIVERSITY CITY SCIENCE CENTER | — | Nov 2014 | Philadelphia L&I licence | folio match · high |
| MOHAMMED AHMED (7 ELEVEN STORE) | — | Nov 2011 | Philadelphia L&I licence | folio match · high |
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883076510 |
| Site address | 3440 MARKET ST |
| Land use (DOR) | DE0 — OFF BLD N/COM W/PKG MASON |
| Building area (actual) | 130,002 sq ft |
| Floors / units / buildings | 6 / — / — |
| Lot size | — |
| Year built | 1981 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $39,100,000 |
Recorded owner (assessment roll)
VTR 3440 MARKET LLC
Owner mailing address: 353 NORTH CLARK STREET 3300, CHICAGO, IL, 60654
Location
- Address
- 3440 MARKET ST
- City
- Philadelphia
- ZIP
- 19104
- Coordinates
- 39.95562, -75.19252
Within ~650 m
Nearby office buildings
- 3521-35 MARKET ST2 tenants
473,400 sq ft · 1974
- 3151L MARKET ST0 tenants
435,492 sq ft · 12 fl · 2025
- 25 N 38TH ST0 tenants
428,400 sq ft · 13 fl · 2024
- 3711L MARKET ST0 tenants
356,362 sq ft · 14 fl · 2015
- 3655-75 MARKET ST4 tenants
295,293 sq ft · 14 fl · 2018
- 3701 MARKET ST1 tenants
172,000 sq ft · 2000
How does 3440 MARKET ST compare with other Philadelphia office buildings?
At 130,002 sq ft, 3440 MARKET ST is about 4 times the size of 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 $301 per square foot of building area, against $163 across all office floor area on the roll.
What has happened at 3440 MARKET ST recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “OFF BLD N/COM W/PKG MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883076510 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 3440 MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is VTR 3440 MARKET LLC. Owner mailing address on file: 353 NORTH CLARK STREET 3300, CHICAGO, IL, 60654.
What companies have offices at 3440 MARKET ST?
2 active business locations at this building appear in Philadelphia public records, including UNIVERSITY CITY SCIENCE CENTER, MOHAMMED AHMED (7 ELEVEN STORE). Public records under-count tenants that don't hold a local receipt or register the address.
How big is 3440 MARKET ST?
The Philadelphia roll records 130,002 sq ft of building area, 6 floors, a build year of 1981.
What is the assessed value of 3440 MARKET ST?
$39,100,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 3440 MARKET ST?
OPA account 883076510, site address 3440 MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 3440 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 883076510.
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, “3440 MARKET ST, Philadelphia, PA (OPA account 883076510)”, https://buildingcensus.com/offices/philly/office-building-ef7a0797 (data as of October 10, 2026).