# Government

Government in Illinois. It covers 271,524 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

Government in Illinois. Property ID spm732kg65kvggx.

## Facts

**Facts about Government**

| Fact | Value | Source |
| --- | --- | --- |
| City | IL 60421 | [County and state public records](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Building type | Government | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Footprint | 271,524 square feet | [USA Structures](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Perimeter | 6,932.97 feet | [USA Structures](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Height | 64.4 feet | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Height survey year | 2014 | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Stories | 5 stories | [USGS 3D Elevation Program](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#how-we-know) |
| Exterior wall area | 446,504 square feet | [SkyPSI estimator](https://skypsi.com/property/il/chicago/spm732kg65kvggx-government/#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) | $22,000 | $41,500 | $69,500 |
| Facade wash with mold or growth treatment | $33,500 | $61,000 | $105,500 |

**Exterior soft wash from a boom lift and by rope access, whole building**

| Service | Low | Most likely | High |
| --- | --- | --- | --- |
| Facade wash, conventional access | $41,500 | $75,000 | $125,000 |

### Window cleaning

**Window cleaning by drone, whole building**

| Service | Low | Most likely | High |
| --- | --- | --- | --- |
| Exterior windows only | $8,500 | $16,500 | $28,000 |
| Windows inside and out | $14,000 | $28,000 | $50,000 |

**Window cleaning by rope access, whole building**

| Service | Low | Most likely | High |
| --- | --- | --- | --- |
| Exterior windows, rope access | $55,500 | $111,000 | $194,500 |
| Windows inside and out, rope access | $61,000 | $122,500 | $217,000 |

## Best method

- [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $41,500.
- [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $16,500.

## Similar buildings nearby

- [Government](https://skypsi.com/property/il/chicago/sp3hm0j55gnyvqa-government/)
- [23247 West Eames Street, Channahon](https://skypsi.com/property/il/chicago/spgvxnaczvwhrv2-23247-west-eames-street-channahon/)
- [23341 West McClintock Road, Channahon](https://skypsi.com/property/il/chicago/spv0hj361rtmzkd-23341-west-mcclintock-road-channahon/)

## 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.
- [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: County and state public records, USA Structures, SkyPSI estimator, USGS 3D Elevation Program.

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 heights from the U.S. Geological Survey 3D Elevation Program (public domain). https://www.usgs.gov/3d-elevation-program

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