333 W MOUNT PLEASANT AVE
OFF BLD N/COM W/PKG MASON · Philadelphia · 19119
At a glance
333 W MOUNT PLEASANT AVE in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/COM W/PKG MASON”, OPA account 883553100. The roll records 2,634 sq ft of building area, 1 floors, a 1998 build year and an assessed value of $274,000.
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 | 883553100 |
| Site address | 333 W MOUNT PLEASANT AVE |
| Land use (DOR) | DE0 — OFF BLD N/COM W/PKG MASON |
| Building area (actual) | 2,634 sq ft |
| Floors / units / buildings | 1 / — / — |
| Lot size | — |
| Year built | 1998 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $274,000 |
Recorded owner (assessment roll)
No owning organisation shown. Where the county roll names a private individual, the name and mailing address are not published here.
Location
- Address
- 333 W MOUNT PLEASANT AVE
- City
- Philadelphia
- ZIP
- 19119
- Coordinates
- 40.05365, -75.19512
Within ~650 m
Nearby office buildings
- 309 W MOUNT PLEASANT AVE0 tenants
18,423 sq ft
- 7112 GERMANTOWN AVE0 tenants
15,354 sq ft · 2 fl · 1935
- 7146-50 GERMANTOWN AVE1 tenants
4,118 sq ft · 3 fl · 1930
- 7152 GERMANTOWN AVE1 tenants
2,921 sq ft · 2 fl · 1915
- 301 W MOUNT PLEASANT AVE1 tenants
2,025 sq ft · 1 fl · 1930
- 7113 EMLEN ST0 tenants
1,921 sq ft · 1890
How does 333 W MOUNT PLEASANT AVE compare with other Philadelphia office buildings?
At 2,634 sq ft, 333 W MOUNT PLEASANT AVE is less than a tenth 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 $104 per square foot of building area, against $163 across all office floor area on the roll.
What does “OFF BLD N/COM W/PKG MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883553100 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 333 W MOUNT PLEASANT AVE?
No owning organisation is shown for this parcel. Where the county roll names a private individual as owner, BuildingCensus does not publish the name or mailing address.
What companies have offices at 333 W MOUNT PLEASANT AVE?
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 333 W MOUNT PLEASANT AVE?
The Philadelphia roll records 2,634 sq ft of building area, 1 floors, a build year of 1998.
What is the assessed value of 333 W MOUNT PLEASANT AVE?
$274,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 333 W MOUNT PLEASANT AVE?
OPA account 883553100, site address 333 W MOUNT PLEASANT AVE, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 333 W MOUNT PLEASANT AVE
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 883553100.
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, “333 W MOUNT PLEASANT AVE, Philadelphia, PA (OPA account 883553100)”, https://buildingcensus.com/offices/philly/office-building-67dee752 (data as of October 10, 2026).