# 1718 Prentiss Drive, Downers Grove Government in Downers Grove, Illinois. It covers 619 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 1718 Prentiss Drive, Downers Grove. Government in Downers Grove, Illinois. Property ID sp3se91mefy2213. ## Facts **Facts about 1718 Prentiss Drive, Downers Grove** | Fact | Value | Source | | --- | --- | --- | | Address | 1718 Prentiss Drive, Downers Grove, IL 60516 | [Overture Maps addresses](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Building type | Government | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Footprint | 619 square feet | [USA Structures](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Perimeter | 100.38 feet | [USA Structures](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Height | 10.24 feet | [USA Structures](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Stories | 1 story | [USA Structures](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#how-we-know) | | Exterior wall area | 1,027 square feet | [SkyPSI estimator](https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/#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 | $500 | $500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $500. ## Similar buildings nearby - [6483 Stair Street, Downers Grove](https://skypsi.com/property/il/chicago/spfmfrd55f6c9rw-6483-stair-street-downers-grove/) - [2107 Midhurst Road, Downers Grove](https://skypsi.com/property/il/chicago/speymbvqka289vy-2107-midhurst-road-downers-grove/) - [5901 Belmont Road, Downers Grove](https://skypsi.com/property/il/chicago/sphfggw5hp1r22p-5901-belmont-road-downers-grove/) ## 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 addresses](https://docs.overturemaps.org/attribution/): Street addresses from the Overture Maps addresses 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: USA Structures, Overture Maps addresses, SkyPSI estimator. 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/ Addresses: Overture Maps Foundation, overturemaps.org (addresses theme), including the U.S. Department of Transportation National Address Database (NAD). https://docs.overturemaps.org/attribution/ Page: https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove/ JSON: https://skypsi.com/property/il/chicago/sp3se91mefy2213-1718-prentiss-drive-downers-grove.json Content license: https://skypsi.com/content-license.txt