# 9027 Grant Avenue, Brookfield School in Brookfield, Illinois. It covers 847 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 9027 Grant Avenue, Brookfield. School in Brookfield, Illinois. Property ID sp8mawd7rmf18j2. ## Facts **Facts about 9027 Grant Avenue, Brookfield** | Fact | Value | Source | | --- | --- | --- | | Address | 9027 Grant Avenue, Brookfield, IL 60513 | [Overture Maps addresses](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Footprint | 847 square feet | [USA Structures](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Perimeter | 119.85 feet | [USA Structures](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Height | 11.22 feet | [USA Structures](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Stories | 1 story | [USA Structures](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Exterior wall area | 1,345 square feet | [SkyPSI estimator](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Parcel number | 15344170070000 | [County and state public records](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#how-we-know) | | Land use | EX Exempt Property | [County and state public records](https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/#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 - [3701 Park Avenue, Brookfield](https://skypsi.com/property/il/chicago/sp319eg187q57a7-3701-park-avenue-brookfield/) - [3744 Grand Boulevard, Brookfield](https://skypsi.com/property/il/chicago/sp28c80f1tkkgpx-3744-grand-boulevard-brookfield/) - [3524 Maple Avenue, Brookfield](https://skypsi.com/property/il/chicago/spc5k531ndgeft5-3524-maple-avenue-brookfield/) ## 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. - [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: County and state public records, USA Structures, Overture Maps addresses, 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/ 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/sp8mawd7rmf18j2-9027-grant-avenue-brookfield/ JSON: https://skypsi.com/property/il/chicago/sp8mawd7rmf18j2-9027-grant-avenue-brookfield.json Content license: https://skypsi.com/content-license.txt