# 21660 West Field Parkway, Deer Park Retail in Deer Park, Illinois. It covers 28,175 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 21660 West Field Parkway, Deer Park. Retail in Deer Park, Illinois. Property ID spt6s4tfgp3g22e. ## Facts **Facts about 21660 West Field Parkway, Deer Park** | Fact | Value | Source | | --- | --- | --- | | Address | 21660 West Field Parkway, Deer Park, IL 60010 | [USA Structures](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Building type | Retail | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Place name | Co-Optim Deer Park | [Overture Maps places](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Place type | party and event planning | [Overture Maps places](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Footprint | 28,175 square feet | [USA Structures](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Perimeter | 681.97 feet | [USA Structures](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Height | 50.13 feet | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Height survey year | 2017 | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Stories | 3 stories | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#how-we-know) | | Exterior wall area | 34,188 square feet | [SkyPSI estimator](https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/#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 by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash (drone) | $3,000 | $5,500 | $9,000 | | Facade wash with mold or growth treatment | $4,500 | $8,000 | $13,500 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $5,500 | $9,500 | $16,000 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $1,000 | $2,000 | $3,500 | | Windows inside and out | $2,000 | $3,500 | $6,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $7,000 | $14,500 | $25,000 | | Windows inside and out, rope access | $8,000 | $16,000 | $28,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $5,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $2,000. ## Similar buildings nearby - [21805 West Field Parkway, Deer Park](https://skypsi.com/property/il/chicago/spbbhyapaa6e6qh-21805-west-field-parkway-deer-park/) - [21540 West Field Parkway, Deer Park](https://skypsi.com/property/il/chicago/spwyembjr2b817n-21540-west-field-parkway-deer-park/) - [20330 North Deer Park Boulevard, Deer Park](https://skypsi.com/property/il/chicago/spxahwgqr2352v5-20330-north-deer-park-boulevard-deer-park/) ## 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/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park/ JSON: https://skypsi.com/property/il/chicago/spt6s4tfgp3g22e-21660-west-field-parkway-deer-park.json Content license: https://skypsi.com/content-license.txt