4701 MARKET ST
OFF BLD N/COM W/PKG MASON · Philadelphia · 19139
At a glance
4701 MARKET ST in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/COM W/PKG MASON”, OPA account 883080804. The roll records 171,416 sq ft of building area and an assessed value of $2,500,000.
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 | 883080804 |
| Site address | 4701 MARKET ST |
| Land use (DOR) | DE0 — OFF BLD N/COM W/PKG MASON |
| Building area (actual) | 171,416 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | — |
| Year built | — |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $2,500,000 |
Recorded owner (assessment roll)
IS3 MARKET LLC
Owner mailing address: 2929 WALNUT ST STE 1540, PHILADELPHIA, PA, 19104
4 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
- 4701 MARKET ST
- City
- Philadelphia
- ZIP
- 19139
- Coordinates
- 39.95867, -75.21408
Within ~650 m
Nearby office buildings
- 111 N 49TH ST3 tenants
390,000 sq ft · 3 fl · 2010
- 4601 MARKET ST2 tenants
245,204 sq ft · 1975
- 4610 HAVERFORD AVE0 tenants
162,486 sq ft
- 4415 CHESTNUT ST2 tenants
57,300 sq ft · 5 fl · 2022
- 4865 MARKET ST3 tenants
52,000 sq ft · 2 fl · 2012
- 4548 MARKET ST1 tenants
35,000 sq ft · 2 fl · 1940
How does 4701 MARKET ST compare with other Philadelphia office buildings?
At 171,416 sq ft, 4701 MARKET ST 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 $15 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 4701 MARKET ST hold other Philadelphia office property?
4 Philadelphia office properties (4 parcels, 624.1K sq ft) are recorded to 4 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/COM W/PKG MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883080804 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 4701 MARKET ST?
The recorded owner on the Philadelphia assessment roll (current) is IS3 MARKET LLC. Owner mailing address on file: 2929 WALNUT ST STE 1540, PHILADELPHIA, PA, 19104.
What companies have offices at 4701 MARKET ST?
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 4701 MARKET ST?
The Philadelphia roll records 171,416 sq ft of building area.
What is the assessed value of 4701 MARKET ST?
$2,500,000 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 4701 MARKET ST?
OPA account 883080804, site address 4701 MARKET ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 4701 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 883080804.
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, “4701 MARKET ST, Philadelphia, PA (OPA account 883080804)”, https://buildingcensus.com/offices/philly/office-building-1b3332cb (data as of October 10, 2026).