# 6400 Ridge Ave, Philadelphia School in Philadelphia, Pennsylvania. It covers 100,926 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 30, 2026. Method propdata-estimator-v6. ## This building 6400 Ridge Ave, Philadelphia. School in Philadelphia, Pennsylvania. Property ID spp7kc857gm133v. ## Facts **Facts about 6400 Ridge Ave, Philadelphia** | Fact | Value | Source | | --- | --- | --- | | Address | 6400 Ridge Ave, Philadelphia, PA | [County and state public records](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Place name | Roxborough High School | [Overture Maps places](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Place type | high school | [Overture Maps places](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Footprint | 100,926 square feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Perimeter | 2,104.72 feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Height | 36.12 feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Stories | 3 stories | [USA Structures](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Exterior wall area | 76,027 square feet | [SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Parcel number | 784378200 | [County and state public records](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | | Land use | COMMERCIAL - SCHOOL 3 STY MASONRY | [County and state public records](https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/#how-we-know) | ## Cost ranges Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. [What the grades mean](https://skypsi.com/estimates/methodology/confidence-grades/). ### Exterior soft wash **Exterior soft wash from a boom lift, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $11,500 | $21,000 | $35,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $21,000. ## Similar buildings nearby - [519 Gates St, Philadelphia](https://skypsi.com/property/pa/philadelphia/spttxmx3pxq22sr-519-gates-st-philadelphia/) - [6307 Ridge Ave, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp6kd2qpwazgjj0-6307-ridge-ave-philadelphia/) - [527 Gates St, Philadelphia](https://skypsi.com/property/pa/philadelphia/spx52csc70fdghe-527-gates-st-philadelphia/) - [6247 Ridge Ave, Philadelphia](https://skypsi.com/property/pa/philadelphia/spjpb4hj5pvx3za-6247-ridge-ave-philadelphia/) - [251 Fountain St, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp9pw0pmwm8c6cy-251-fountain-st-philadelphia/) - [472 Green Ln, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp471w22s5d0cq6-472-green-ln-philadelphia/) - [472 Green Ln, Philadelphia](https://skypsi.com/property/pa/philadelphia/spcr3d3ca22nyg1-472-green-ln-philadelphia/) - [6138 Ridge Ave, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp5wtct6tws5zbv-6138-ridge-ave-philadelphia/) ## 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](https://comptroller.texas.gov/taxes/property-tax/): Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data. - [USA Structures](https://disasters.geoplatform.gov/USA_Structures/): Building footprints, heights and occupancy from FEMA's USA Structures. - [Overture Maps places](https://docs.overturemaps.org/attribution/): Business and place names from the Overture Maps places theme. - [SkyPSI estimator](https://skypsi.com/estimates/methodology/sources-and-licensing/): 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](https://skypsi.com/estimates/methodology/how-a-skyestimate-is-built/). [Request a Quote](https://skypsi.com/request-a-quote) --- Sources: County and state public records, USA Structures, Overture Maps places, SkyPSI estimator. Parcel and address facts from county appraisal districts and state open-data programs (public records). https://comptroller.texas.gov/taxes/property-tax/ Building footprints: USA Structures, FEMA Response Geospatial Office, Oak Ridge National Laboratory and U.S. Geological Survey (CC BY 4.0). https://disasters.geoplatform.gov/USA_Structures/ Business names: Overture Maps Foundation, overturemaps.org (places theme, CDLA Permissive 2.0). https://docs.overturemaps.org/attribution/ Page: https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia/ JSON: https://skypsi.com/property/pa/philadelphia/spp7kc857gm133v-6400-ridge-ave-philadelphia.json Content license: https://skypsi.com/content-license.txt