# 21100 Fern Ave, Oak Park

Retail in Oak Park, Michigan. It covers 17,104 square feet on the ground.

Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 27, 2026. Method propdata-estimator-v6.

## This building

21100 Fern Ave, Oak Park. Retail in Oak Park, Michigan. Property ID spavp3ss3a2k72f.

## Facts

**Facts about 21100 Fern Ave, Oak Park**

| Fact | Value | Source |
| --- | --- | --- |
| Address | 21100 Fern Ave, Oak Park, MI 48237 | [Overture Maps addresses](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Building type | Retail | [USA Structures and SkyPSI estimator](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Footprint | 17,104 square feet | [USA Structures](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Perimeter | 614.35 feet | [USA Structures](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Height | 17.98 feet | [USA Structures](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Height survey year | 2017 | [USA Structures](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Stories | 1 story | [USA Structures](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-park/#how-we-know) |
| Exterior wall area | 11,045 square feet | [SkyPSI estimator](https://skypsi.com/property/mi/detroit/spavp3ss3a2k72f-21100-fern-ave-oak-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 from a boom lift, whole building**

| Service | Low | Most likely | High |
| --- | --- | --- | --- |
| Facade wash, conventional access | $1,500 | $3,000 | $5,000 |

## Best method

- [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $3,000.

## Similar buildings nearby

- [21090 Fern Ave, Oak Park](https://skypsi.com/property/mi/detroit/sp0949n2363gsxn-21090-fern-ave-oak-park/)
- [Retail in Oak Park](https://skypsi.com/property/mi/detroit/spvc2dcgrkavk78-retail-oak-park/)
- [Retail in Oak Park](https://skypsi.com/property/mi/detroit/spzbw9a6n50v73s-retail-oak-park/)
- [13133 Cloverdale Ave, Oak Park](https://skypsi.com/property/mi/detroit/sp3h07bq0s9bwsg-13133-cloverdale-ave-oak-park/)
- [13155 Cloverdale Ave, Oak Park](https://skypsi.com/property/mi/detroit/sp6gk2mva21kj4w-13155-cloverdale-ave-oak-park/)
- [13133 Cloverdale Ave, Oak Park](https://skypsi.com/property/mi/detroit/sp29mms6n36ppv5-13133-cloverdale-ave-oak-park/)
- [Retail in Oak Park](https://skypsi.com/property/mi/detroit/sp20dp0e3h68fmn-retail-oak-park/)
- [12980 W 8 Mile Rd, Oak Park](https://skypsi.com/property/mi/detroit/sprgy98dsrk253s-12980-w-8-mile-rd-oak-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 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/

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