5429-37 GERMANTOWN AVE
OFF BLD N/PKG N/COM MASON · Philadelphia · 19144
At a glance
5429-37 GERMANTOWN AVE in Philadelphia, PA is listed on the Philadelphia property roll as “OFF BLD N/PKG N/COM MASON”, OPA account 883805800. The roll records 20,825 sq ft of building area, 2 floors, a 1950 build year and an assessed value of $2,249,100. 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 |
|---|---|---|---|---|
| NORTHWESTERN HUMAN SERVICES | — | Sep 2010 | Philadelphia L&I licence | folio match · high |
Philadelphia assessment roll
Parcel record
| Field | Value |
|---|---|
| OPA account | 883805800 |
| Site address | 5429-37 GERMANTOWN AVE |
| Land use (DOR) | DD0 — OFF BLD N/PKG N/COM MASON |
| Building area (actual) | 20,825 sq ft |
| Floors / units / buildings | 2 / — / — |
| Lot size | — |
| Year built | 1950 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $2,249,100 |
Recorded owner (assessment roll)
NHS II PROPERTIES LLC
Owner mailing address: 620 GERMANTOWN PIKE, LAFAYETTE HILL, PA, 19444
3 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
- 5429-37 GERMANTOWN AVE
- City
- Philadelphia
- ZIP
- 19144
- Coordinates
- 40.03400, -75.17138
Within ~650 m
Nearby office buildings
- 5627-33 GERMANTOWN AVE1 tenants
96,824 sq ft · 8 fl · 1930
- 301-31 E CHELTEN AVE3 tenants
85,420 sq ft · 4 fl · 1921
- 138-48 W CHELTEN AVE4 tenants
36,240 sq ft · 2 fl · 1940
- 5853-71 GERMANTOWN AVE0 tenants
25,902 sq ft · 1 fl · 1912
- 5904 GERMANTOWN AVE1 tenants
24,500 sq ft · 5 fl · 2023
- 5401-07 GERMANTOWN AVE0 tenants
22,330 sq ft · 3 fl · 1900
How does 5429-37 GERMANTOWN AVE compare with other Philadelphia office buildings?
At 20,825 sq ft, 5429-37 GERMANTOWN AVE is about 43% 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 $108 per square foot of building area, against $163 across all office floor area on the roll.
Does the owner of 5429-37 GERMANTOWN AVE hold other Philadelphia office property?
3 Philadelphia office properties (3 parcels, 28.2K 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 883805800 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 5429-37 GERMANTOWN AVE?
The recorded owner on the Philadelphia assessment roll (current) is NHS II PROPERTIES LLC. Owner mailing address on file: 620 GERMANTOWN PIKE, LAFAYETTE HILL, PA, 19444.
What companies have offices at 5429-37 GERMANTOWN AVE?
1 active business locations at this building appear in Philadelphia public records, including NORTHWESTERN HUMAN SERVICES. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 5429-37 GERMANTOWN AVE?
The Philadelphia roll records 20,825 sq ft of building area, 2 floors, a build year of 1950.
What is the assessed value of 5429-37 GERMANTOWN AVE?
$2,249,100 on the Philadelphia roll. Assessed values are taxable-roll figures, not market prices.
What is the OPA account for 5429-37 GERMANTOWN AVE?
OPA account 883805800, site address 5429-37 GERMANTOWN AVE, Philadelphia. It is the key to look the parcel up in the Office of Property Assessment nightly roll (Philadelphia).
More around 5429-37 GERMANTOWN 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 883805800.
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, “5429-37 GERMANTOWN AVE, Philadelphia, PA (OPA account 883805800)”, https://buildingcensus.com/offices/philly/office-building-e337309a (data as of October 10, 2026).