Property record
115 S 21st St, Philadelphia
Apartments in Philadelphia, Pennsylvania. It covers 2,238 square feet on the ground.
This building
115 S 21st St, Philadelphia. Apartments in Philadelphia, Pennsylvania. Property ID sp9tq2t11d9956q.
Facts
| Fact | Value | Source |
|---|---|---|
| Address | 115 S 21st St, Philadelphia, PA | County and state public records |
| Building type | Apartments | USA Structures and SkyPSI estimator |
| Footprint | 2,238 square feet | USA Structures |
| Perimeter | 194.28 feet | USA Structures |
| Height | 49.34 feet | USA Structures |
| Stories | 5 stories | USA Structures |
| Exterior wall area | 9,587 square feet | SkyPSI estimator |
| Parcel number | 881548270 | County and state public records |
| Land use | MULTI FAMILY - APTS 5-50 UNITS 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 (drone) | $1,000 | $1,500 | $2,500 |
| Facade wash with mold or growth treatment | $1,000 | $2,500 | $4,000 |
| Service | Low | Most likely | High |
|---|---|---|---|
| Facade wash, conventional access | $1,500 | $3,000 | $4,500 |
Window cleaning
| Service | Low | Most likely | High |
|---|---|---|---|
| Exterior windows only | $500 | $500 | $1,000 |
| Windows inside and out | $500 | $1,000 | $2,000 |
| Service | Low | Most likely | High |
|---|---|---|---|
| Exterior windows, rope access | $2,000 | $4,000 | $7,000 |
| Windows inside and out, rope access | $2,500 | $4,500 | $8,000 |
Best method
- Exterior soft wash: Drone has the lowest cost, most likely $1,500.
- Window cleaning: Drone has the lowest cost, most likely $500.
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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.
- 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, SkyPSI estimator.
An estimate, not a quote. How a SkyEstimate is built.