# 29100 Northwestern Hwy, Southfield Hotel in Southfield, Michigan. It covers 28,278 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 29100 Northwestern Hwy, Southfield. Hotel in Southfield, Michigan. Property ID spzgt6wy91esaav. ## Facts **Facts about 29100 Northwestern Hwy, Southfield** | Fact | Value | Source | | --- | --- | --- | | Address | 29100 Northwestern Hwy, Southfield, MI 48034 | [Overture Maps addresses](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Building type | Hotel | [USA Structures and SkyPSI estimator](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Place name | Sameaddress | [Overture Maps places](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Place type | accommodation | [Overture Maps places](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Footprint | 28,278 square feet | [USA Structures](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Perimeter | 773.97 feet | [USA Structures](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Height | 50.36 feet | [USA Structures](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Height survey year | 2017 | [USA Structures](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Stories | 5 stories | [USA Structures](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#how-we-know) | | Exterior wall area | 38,978 square feet | [SkyPSI estimator](https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield/#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) | $3,500 | $6,000 | $10,500 | | Facade wash with mold or growth treatment | $5,000 | $9,000 | $16,000 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $6,000 | $11,000 | $18,500 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $1,000 | $2,500 | $4,000 | | Windows inside and out | $2,000 | $4,000 | $7,500 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $8,500 | $16,500 | $29,000 | | Windows inside and out, rope access | $9,000 | $18,500 | $32,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $6,000. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $2,500. ## Similar buildings nearby - [27627 Hamilton Blvd, Farmington Hills](https://skypsi.com/property/mi/detroit/spwwnh1ehny5hj4-27627-hamilton-blvd-farmington-hills/) - [3600 Centerpoint Pkwy, Pontiac](https://skypsi.com/property/mi/detroit/sp2tf6ncyefc0q6-3600-centerpoint-pkwy-pontiac/) - [2301 W Big Beaver Rd, Troy](https://skypsi.com/property/mi/detroit/spddc7q1k7ndrvr-2301-w-big-beaver-rd-troy/) - [2300 Featherstone Rd, Auburn Hills](https://skypsi.com/property/mi/detroit/sptf40qh6pmxj6c-2300-featherstone-rd-auburn-hills/) - [27000 S Karevich Dr, Novi](https://skypsi.com/property/mi/detroit/sp6d6hdmgc63stn-27000-s-karevich-dr-novi/) - [1525 E Maple Rd, Troy](https://skypsi.com/property/mi/detroit/spa749gpkqanevg-1525-e-maple-rd-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/spzgt6wy91esaav-29100-northwestern-hwy-southfield/ JSON: https://skypsi.com/property/mi/detroit/spzgt6wy91esaav-29100-northwestern-hwy-southfield.json Content license: https://skypsi.com/content-license.txt