# 28744 Witherspoon Parkway Industrial in California. It covers 21,529 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 7, 2026. Method propdata-estimator-v6. ## This building 28744 Witherspoon Parkway. Industrial in California. Property ID sp197qfqn18xpfy. ## Facts **Facts about 28744 Witherspoon Parkway** | Fact | Value | Source | | --- | --- | --- | | Address | 28744 Witherspoon Parkway, CA 91355 | [Overture Maps addresses](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Building type | Industrial | [USA Structures and SkyPSI estimator](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Place name | Flightline Products Inc. | [Overture Maps places](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Place type | shoe store | [Overture Maps places](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Footprint | 21,529 square feet | [USA Structures](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Perimeter | 670.72 feet | [USA Structures](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Height | 31.17 feet | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Stories | 2 stories | [Overture Maps building footprints and Google Open Buildings](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#how-we-know) | | Exterior wall area | 20,905 square feet | [SkyPSI estimator](https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/#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 | $3,500 | $6,000 | $10,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $6,000. ## Similar buildings nearby - [28732 Witherspoon Parkway](https://skypsi.com/property/ca/los-angeles/sptmhf3xpm4jzjg-28732-witherspoon-parkway/) - [29057 Avenue Penn](https://skypsi.com/property/ca/los-angeles/spzqzpve60rzxet-29057-avenue-penn/) - [29089 Avenue Penn](https://skypsi.com/property/ca/los-angeles/spkk4ag1gt5njmf-29089-avenue-penn/) ## 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. - [Google Open Buildings](https://sites.research.google/open-buildings/): Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme. - [Overture Maps addresses](https://docs.overturemaps.org/attribution/): Street addresses from the Overture Maps addresses theme. - [Overture Maps building footprints](https://opendatacommons.org/licenses/odbl/1-0/): Building outlines, heights and floor counts from the Overture Maps buildings 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, Google Open Buildings, Overture Maps addresses, Overture Maps building footprints, 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/ Building data from Google Open Buildings, reached through Overture Maps Foundation, overturemaps.org. https://sites.research.google/open-buildings/ Addresses: Overture Maps Foundation, overturemaps.org (addresses theme), including the U.S. Department of Transportation National Address Database (NAD). https://docs.overturemaps.org/attribution/ Building footprints from Overture Maps Foundation, including OpenStreetMap contributors, Microsoft, Esri Community Maps contributors and USGS, under the Open Database License (ODbL). https://opendatacommons.org/licenses/odbl/1-0/ Business names: Overture Maps Foundation, overturemaps.org (places theme, CDLA Permissive 2.0). https://docs.overturemaps.org/attribution/ Page: https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway/ JSON: https://skypsi.com/property/ca/los-angeles/sp197qfqn18xpfy-28744-witherspoon-parkway.json Content license: https://skypsi.com/content-license.txt