# 4089 Defford Place, Norristown Apartments in Norristown, Pennsylvania. It covers 5,934 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 4089 Defford Place, Norristown. Apartments in Norristown, Pennsylvania. Property ID spr4n9ptxxxtah6. ## Facts **Facts about 4089 Defford Place, Norristown** | Fact | Value | Source | | --- | --- | --- | | Address | 4089 Defford Place, Norristown, PA 19403 | [USA Structures](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Building type | Apartments | [USA Structures and SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Footprint | 5,934 square feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Perimeter | 385.66 feet | [USA Structures](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Height | 25.92 feet | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Stories | 3 stories | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Exterior wall area | 9,844 square feet | [SkyPSI estimator](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Parcel number | 430003008099 | [County and state public records](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#how-we-know) | | Land use | 1132 R | [County and state public records](https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/#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 | $1,500 | $3,000 | $4,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $3,000. ## Similar buildings nearby - [5007 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/spxs18865fc530m-5007-defford-place-norristown/) - [4083 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/sptda46zwga5d5y-4083-defford-place-norristown/) - [5077 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/spyxx0vgftt1sc9-5077-defford-place-norristown/) - [5085 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/sp1bpdhtmg31scx-5085-defford-place-norristown/) - [5017 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/sp3kq76e4p62c94-5017-defford-place-norristown/) - [5089 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/spw165n6awffc88-5089-defford-place-norristown/) - [5059 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/spy2wd6d481pyf0-5059-defford-place-norristown/) - [5065 Defford Place, Norristown](https://skypsi.com/property/pa/philadelphia/spcd947xc0rr4fz-5065-defford-place-norristown/) ## 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. - [Google Open Buildings](https://sites.research.google/open-buildings/): Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme. - [Overture Maps building footprints](https://opendatacommons.org/licenses/odbl/1-0/): Building outlines, heights and floor counts from the Overture Maps buildings 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, Google Open Buildings, Overture Maps building footprints, 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/ Building data from Google Open Buildings, reached through Overture Maps Foundation, overturemaps.org. https://sites.research.google/open-buildings/ Building footprints from Overture Maps Foundation, including OpenStreetMap contributors, Microsoft, Esri Community Maps contributors and USGS, under the Open Database License (ODbL). https://opendatacommons.org/licenses/odbl/1-0/ Page: https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown/ JSON: https://skypsi.com/property/pa/philadelphia/spr4n9ptxxxtah6-4089-defford-place-norristown.json Content license: https://skypsi.com/content-license.txt