# 821 Wanda Ave, Ferndale Office in Ferndale, Michigan. It covers 15,414 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 821 Wanda Ave, Ferndale. Office in Ferndale, Michigan. Property ID sp328eq2ae9x80q. ## Facts **Facts about 821 Wanda Ave, Ferndale** | Fact | Value | Source | | --- | --- | --- | | Address | 821 Wanda Ave, Ferndale, MI 48220 | [Overture Maps addresses](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Building type | Office | [USA Structures and SkyPSI estimator](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Place name | Gage Products Co | [Overture Maps places](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Place type | chemical plant | [Overture Maps places](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Footprint | 15,414 square feet | [USA Structures](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Perimeter | 734.26 feet | [USA Structures](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Height | 19.62 feet | [USA Structures](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Height survey year | 2017 | [USA Structures](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Stories | 2 stories | [USA Structures](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#how-we-know) | | Exterior wall area | 14,406 square feet | [SkyPSI estimator](https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/#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 | $2,000 | $4,000 | $6,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $4,000. ## Similar buildings nearby - [965 Wanda Ave, Ferndale](https://skypsi.com/property/mi/detroit/sp8bz4k938b6xde-965-wanda-ave-ferndale/) - [29111 Stephenson Hwy, Madison Heights](https://skypsi.com/property/mi/detroit/spsq6xbqnh2gjg6-29111-stephenson-hwy-madison-heights/) - [30750 Stephenson Hwy, Madison Heights](https://skypsi.com/property/mi/detroit/sp5cj9ahhhwn99y-30750-stephenson-hwy-madison-heights/) - [32031 Mally Dr, Madison Heights](https://skypsi.com/property/mi/detroit/spmcdv9f93xbfmb-32031-mally-dr-madison-heights/) - [32100 Stephenson Hwy, Madison Heights](https://skypsi.com/property/mi/detroit/spq1ajck59me056-32100-stephenson-hwy-madison-heights/) - [1675 E Whitcomb Ave, Madison Heights](https://skypsi.com/property/mi/detroit/sp52hzv35ndt8rs-1675-e-whitcomb-ave-madison-heights/) - [1410 E 14 Mile Rd, Madison Heights](https://skypsi.com/property/mi/detroit/spztk55j9n65jv2-1410-e-14-mile-rd-madison-heights/) - [50 Kirts Blvd, Troy](https://skypsi.com/property/mi/detroit/spdznw8enqqqjm4-50-kirts-blvd-troy/) ## 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. - [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. 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, Overture Maps places, 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/ Business names: Overture Maps Foundation, overturemaps.org (places theme, CDLA Permissive 2.0). https://docs.overturemaps.org/attribution/ Page: https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale/ JSON: https://skypsi.com/property/mi/detroit/sp328eq2ae9x80q-821-wanda-ave-ferndale.json Content license: https://skypsi.com/content-license.txt