3901-03 WALNUT ST
OFF BLD N/PKG N/COM MASON · Philadelphia · 19104
At a glance
3901-03 WALNUT ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/PKG N/COM MASON”, OPA account 883038100. The roll records 29,490 sq ft of building area, a 2014 build year and an assessed value of $7,600,000. 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 |
|---|---|---|---|---|
| Starbucks Coffee Companyvia STARBUCKS COFFEE COMPANY | — | Jul 2016 | Philadelphia L&I licence | folio match · high |
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883038100 |
| Site address | 3901-03 WALNUT ST |
| Land use (DOR) | DD0 — OFF BLD N/PKG N/COM MASON |
| Building area (actual) | 29,490 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | — |
| Year built | 2014 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $7,600,000 |
Recorded owner (assessment roll)
TRUSTEES OF U OF P
Owner mailing address: 3101 WALNUT ST, PHILADELPHIA, PA, 19104
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
- 3901-03 WALNUT ST
- City
- Philadelphia
- ZIP
- 19104
- Coordinates
- 39.95409, -75.20041
Within ~650 m
Nearby office buildings
- 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
- 3722-46 MARKET ST0 tenants
165,000 sq ft · 1993
- 4145 CHESTNUT ST2 tenants
130,754 sq ft · 7 fl · 2024
How does 3901-03 WALNUT ST compare with other Philadelphia office buildings?
At 29,490 sq ft, 3901-03 WALNUT ST is about 19% 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 $258 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 3901-03 WALNUT ST hold other Philadelphia office property?
2 Philadelphia office properties (2 parcels, 35K 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/PKG N/COM MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883038100 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 3901-03 WALNUT ST?
The recorded owner on the Philadelphia assessment roll (current) is TRUSTEES OF U OF P. Owner mailing address on file: 3101 WALNUT ST, PHILADELPHIA, PA, 19104.
What companies have offices at 3901-03 WALNUT ST?
1 active business locations at this building appear in Philadelphia public records, including Starbucks Coffee Company. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 3901-03 WALNUT ST?
The Philadelphia roll records 29,490 sq ft of building area, a build year of 2014.
What is the assessed value of 3901-03 WALNUT ST?
$7,600,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 3901-03 WALNUT ST?
OPA account 883038100, site address 3901-03 WALNUT ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 3901-03 WALNUT 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 883038100.
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, “3901-03 WALNUT ST, Philadelphia, PA (OPA account 883038100)”, https://buildingcensus.com/offices/philly/office-building-b7b34822 (data as of October 10, 2026).