Property record
3441 Walnut St, Philadelphia
School in Philadelphia, Pennsylvania. It covers 19,093 square feet on the ground.
This building
3441 Walnut St, Philadelphia. School in Philadelphia, Pennsylvania. Property ID spr66dehp8f03ny.
Facts
| Fact | Value | Source |
|---|---|---|
| Address | 3441 Walnut St, Philadelphia, PA | County and state public records |
| Building type | School | USA Structures and SkyPSI estimator |
| Place name | University of Pennsylvania - Research | Overture Maps places |
| Place type | campus building | Overture Maps places |
| Footprint | 19,093 square feet | USA Structures |
| Perimeter | 598.23 feet | USA Structures |
| Height | 40.59 feet | Overture Maps building footprints and Google Open Buildings |
| Stories | 3 stories | Overture Maps building footprints and Google Open Buildings |
| Exterior wall area | 24,283 square feet | SkyPSI estimator |
| Parcel number | 773564500 | County and state public records |
| Land use | COMMERCIAL - MISC ADMIN BLDG MASONRY | County and state public records |
Cost ranges
Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. What the grades mean.
Exterior soft wash
| Service | Low | Most likely | High |
|---|---|---|---|
| Facade wash, conventional access | $3,500 | $6,500 | $11,000 |
Best method
- Exterior soft wash: Boom lift fits this building, most likely $6,500.
Similar buildings nearby
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- 3406 Walnut St, Philadelphia
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How we know
Each fact names the source it comes from. A building file carries the source of each field, and SkyPSI shows that source beside the fact.
- County and state public records: Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data.
- USA Structures: Building footprints, heights and occupancy from FEMA's USA Structures.
- Google Open Buildings: Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme.
- Overture Maps building footprints: Building outlines, heights and floor counts from the Overture Maps buildings theme.
- Overture Maps places: Business and place names from the Overture Maps places theme.
- SkyPSI estimator: SkyPSI's own price model, calibrated rates and building-class rules.
Cost ranges come from the SkyPSI estimator, calibrated October 2, 2026. How a SkyEstimate is built.
Ask SkyPSI for a quote on your building.
Request a QuoteSources: County and state public records, USA Structures, Google Open Buildings, Overture Maps building footprints, Overture Maps places, SkyPSI estimator.
An estimate, not a quote. How a SkyEstimate is built.