# 1911 Arch St, Philadelphia School in Philadelphia, Pennsylvania. It covers 1,121 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 1911 Arch St, Philadelphia. School in Philadelphia, Pennsylvania. Property ID sp9q5e0ahakzsab. ## Facts **Facts about 1911 Arch St, Philadelphia** | Fact | Value | Source | | --- | --- | --- | | Address | 1911 Arch St, Philadelphia, PA | [County and state public records](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Place name | Support Center for Child Advocates | [Overture Maps places](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Place type | corporate office | [Overture Maps places](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Footprint | 1,121 square feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Perimeter | 170.69 feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Stories | 2 stories | [SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Parcel number | 772495000 | [County and state public records](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia/#how-we-know) | | Land use | COMMERCIAL - SCHOOL 3 STY MASONRY | [County and state public records](https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-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 | $500 | $1,500 | $2,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $1,500. ## Similar buildings nearby - [1911 Arch St, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp39qcaj2vj6pyn-1911-arch-st-philadelphia/) - [1911 Arch St, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp71dmwds2phxza-1911-arch-st-philadelphia/) - [1915 Arch St, Philadelphia](https://skypsi.com/property/pa/philadelphia/spqavpf09d1pk3r-1915-arch-st-philadelphia/) - [1920 Race St, Philadelphia](https://skypsi.com/property/pa/philadelphia/spy86zg2ezq72t0-1920-race-st-philadelphia/) - [114 N 20th St, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp7d5c8m694vxrr-114-n-20th-st-philadelphia/) - [School in Philadelphia](https://skypsi.com/property/pa/philadelphia/sp6yx8b6h9792w4-education-philadelphia/) - [1800 John F Kennedy Blvd, Philadelphia](https://skypsi.com/property/pa/philadelphia/sp34018pqa1cc3v-1800-john-f-kennedy-blvd-philadelphia/) - [201 N 21st St, Philadelphia](https://skypsi.com/property/pa/philadelphia/sppewqgxm9rdxyf-201-n-21st-st-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/sp9q5e0ahakzsab-1911-arch-st-philadelphia/ JSON: https://skypsi.com/property/pa/philadelphia/sp9q5e0ahakzsab-1911-arch-st-philadelphia.json Content license: https://skypsi.com/content-license.txt