# 18 East Old Willow Road, Prospect Heights

Apartments in Prospect Heights, Illinois. It covers 1,819 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

18 East Old Willow Road, Prospect Heights. Apartments in Prospect Heights, Illinois. Property ID sp99h30p0j6aqy0.

## Facts

**Facts about 18 East Old Willow Road, Prospect Heights**

| Fact | Value | Source |
| --- | --- | --- |
| Address | 18 East Old Willow Road, Prospect Heights, IL 60070 | [USA Structures](https://skypsi.com/property/il/chicago/sp99h30p0j6aqy0-18-east-old-willow-road-prospect-heights/#how-we-know) |
| Building type | Apartments | [USA Structures and SkyPSI estimator](https://skypsi.com/property/il/chicago/sp99h30p0j6aqy0-18-east-old-willow-road-prospect-heights/#how-we-know) |
| Footprint | 1,819 square feet | [USA Structures](https://skypsi.com/property/il/chicago/sp99h30p0j6aqy0-18-east-old-willow-road-prospect-heights/#how-we-know) |
| Perimeter | 178.64 feet | [USA Structures](https://skypsi.com/property/il/chicago/sp99h30p0j6aqy0-18-east-old-willow-road-prospect-heights/#how-we-know) |
| Stories | 3 stories | [SkyPSI estimator](https://skypsi.com/property/il/chicago/sp99h30p0j6aqy0-18-east-old-willow-road-prospect-heights/#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 | $1,000 | $1,500 | $2,500 |

## Best method

- [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $1,500.

## Similar buildings nearby

- [Apartments in Prospect Heights](https://skypsi.com/property/il/chicago/spbxvj9c9s0fk0z-multifamily-prospect-heights/)
- [18 East Old Willow Road, Prospect Heights](https://skypsi.com/property/il/chicago/spmp23vaj67xga0-18-east-old-willow-road-prospect-heights/)
- [18 East Old Willow Road, Prospect Heights](https://skypsi.com/property/il/chicago/sp3h7s36qgk9ngh-18-east-old-willow-road-prospect-heights/)

## 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.
- [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)

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Sources: USA Structures, 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/

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