# 20654 South Amherst Court, Joliet Industrial in Joliet, Illinois. It covers 13,700 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 9, 2026. Method propdata-estimator-v6. ## This building 20654 South Amherst Court, Joliet. Industrial in Joliet, Illinois. Property ID sptzn39gky4tm22. ## Facts **Facts about 20654 South Amherst Court, Joliet** | Fact | Value | Source | | --- | --- | --- | | Address | 20654 South Amherst Court, Joliet, IL 60433 | [USA Structures](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Building type | Industrial | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Place name | Cosgrove Construction Inc | [Overture Maps places](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Place type | construction services | [Overture Maps places](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Footprint | 13,700 square feet | [USA Structures](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Perimeter | 560.3 feet | [USA Structures](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Height | 23.79 feet | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Height survey year | 2014 | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Stories | 1 story | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#how-we-know) | | Exterior wall area | 13,327 square feet | [SkyPSI estimator](https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/#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 | $2,000 | $3,500 | $6,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $3,500. ## Similar buildings nearby - [20638 South Amherst Court, Joliet](https://skypsi.com/property/il/chicago/sp67srbd6s4d02c-20638-south-amherst-court-joliet/) - [2501 New Lenox Road, Joliet](https://skypsi.com/property/il/chicago/spkheeh2kzz4n2h-2501-new-lenox-road-joliet/) - [20622 South Amherst Court, Joliet](https://skypsi.com/property/il/chicago/sp2t1fadf8hp5eg-20622-south-amherst-court-joliet/) ## 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. - [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. - [USGS 3D Elevation Program](https://www.usgs.gov/3d-elevation-program): Lidar elevation data that gives building heights where other sources have none. 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: USA Structures, Overture Maps places, SkyPSI estimator, USGS 3D Elevation Program. 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/ Building heights from the U.S. Geological Survey 3D Elevation Program (public domain). https://www.usgs.gov/3d-elevation-program Page: https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet/ JSON: https://skypsi.com/property/il/chicago/sptzn39gky4tm22-20654-south-amherst-court-joliet.json Content license: https://skypsi.com/content-license.txt