1429-33 WALNUT ST
COM CONDO 15-19 STY MASON · Philadelphia · 19102
At a glance
1429-33 WALNUT ST in Philadelphia, PA is listed on the Philadelphia property roll as “COM CONDO 15-19 STY MASON”, OPA account 883039600. The roll records 71,000 sq ft of building area, 15 floors, a 1900 build year and an assessed value of $8,109,900.
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 — 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 | 883039600 |
| Site address | 1429-33 WALNUT ST |
| Land use (DOR) | 6L0 — COM CONDO 15-19 STY MASON |
| Building area (actual) | 71,000 sq ft |
| Floors / units / buildings | 15 / — / — |
| Lot size | — |
| Year built | 1900 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $8,109,900 |
Recorded owner (assessment roll)
1429 WALNUT STREET
COMMERCIAL LLC
Owner mailing address: 1500 WALNUT ST, PHILADELPHIA, PA, 19102
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
- 1429-33 WALNUT ST
- City
- Philadelphia
- ZIP
- 19102
- Coordinates
- 39.94971, -75.16546
Within ~650 m
Nearby office buildings
- 1500-42 MARKET ST7 tenants
2,215,276 sq ft · 43 fl · 1974
- One Liberty Place4 tenants
1,464,000 sq ft · 61 fl · 1986
- BNY Mellon Center6 tenants
1,449,928 sq ft · 54 fl · 1990
- Comcast Center12 tenants
1,200,021 sq ft · 58 fl · 2007
- 1717 ARCH ST0 tenants
1,200,000 sq ft · 51 fl · 1989
- 1700-40 MARKET ST7 tenants
1,183,616 sq ft · 32 fl · 1969
How does 1429-33 WALNUT ST compare with other Philadelphia office buildings?
At 71,000 sq ft, 1429-33 WALNUT ST is about twice the size of the average office building on the Philadelphia roll, which comes to 36,284 sq ft across 2,470 buildings.
With 15 floors it is one of 82 office buildings of ten or more floors in the metro.
Its assessed value works out to $114 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 1429-33 WALNUT ST hold other Philadelphia office property?
2 Philadelphia office properties (2 parcels, 426K 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 has happened at 1429-33 WALNUT ST recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “COM CONDO 15-19 STY MASON” mean for this parcel?
The Philadelphia roll classifies OPA account 883039600 as “COM CONDO 15-19 STY MASON” (use code 6L0). 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 1429-33 WALNUT ST?
The recorded owner on the Philadelphia assessment roll (current) is 1429 WALNUT STREET, COMMERCIAL LLC. Owner mailing address on file: 1500 WALNUT ST, PHILADELPHIA, PA, 19102.
What companies have offices at 1429-33 WALNUT 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 1429-33 WALNUT ST?
The Philadelphia roll records 71,000 sq ft of building area, 15 floors, a build year of 1900.
What is the assessed value of 1429-33 WALNUT ST?
$8,109,900 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 1429-33 WALNUT ST?
OPA account 883039600, site address 1429-33 WALNUT ST, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 1429-33 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 883039600.
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, “1429-33 WALNUT ST, Philadelphia, PA (OPA account 883039600)”, https://buildingcensus.com/offices/philly/office-building-ca269d04 (data as of October 10, 2026).