BuildingCensus

3300 HENRY AVE

OFF BLD COM NO GAR MASON · Philadelphia · 19129

At a glance

3300 HENRY AVE in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD COM NO GAR MASON”, OPA account 883560020. The roll records 182,945 sq ft of building area, 9 floors, a 1929 build year and an assessed value of $14,818,500.

Active records here
0
business-tax + registry entities
Building area
182,945
sq ft (county roll)
Floors
9
county roll
Year built
1929
vintage
Assessed value
$14.8M
current roll
Assessed / sq ft
$81
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

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

FieldValue
OPA account883560020
Site address3300 HENRY AVE
Land use (DOR)DB0 — OFF BLD COM NO GAR MASON
Building area (actual)182,945 sq ft
Floors / units / buildings9 / — / —
Lot size—
Year built1929
Zoning (primary)—
Land value—
Building value—
Total assessed value$14,818,500

Recorded owner (assessment roll)

3300 HENRY LP

Owner mailing address: 2929 WALNUT ST, PHILADELPHIA, PA, 19104

8 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
3300 HENRY AVE
City
Philadelphia
ZIP
19129
Coordinates
40.01177, -75.18461

Within ~650 m

Nearby office buildings

How does 3300 HENRY AVE compare with other Philadelphia office buildings?

At 182,945 sq ft, 3300 HENRY AVE is about 5 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 $81 per square foot of building area, against $163 across all office floor area on the roll.

Does the owner of 3300 HENRY AVE hold other Philadelphia office property?

8 Philadelphia office properties (8 parcels, 485.1K sq ft) are recorded to 8 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 COM NO GAR MASON” mean for this parcel?

The Philadelphia roll classifies OPA account 883560020 as “OFF BLD COM NO GAR MASON” (use code DB0). 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 3300 HENRY AVE?

The recorded owner on the Philadelphia assessment roll (current) is 3300 HENRY LP. Owner mailing address on file: 2929 WALNUT ST, PHILADELPHIA, PA, 19104.

What companies have offices at 3300 HENRY 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 3300 HENRY AVE?

The Philadelphia roll records 182,945 sq ft of building area, 9 floors, a build year of 1929.

What is the assessed value of 3300 HENRY AVE?

$14,818,500 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.

What is the OPA account for 3300 HENRY AVE?

OPA account 883560020, site address 3300 HENRY AVE, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).

More around 3300 HENRY 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.

Working with Philadelphia office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Philadelphia assessment roll, OPA account 883560020.

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, “3300 HENRY AVE, Philadelphia, PA (OPA account 883560020)”, https://buildingcensus.com/offices/philly/office-building-03074f04 (data as of October 10, 2026).