# 3805 Timberline Drive, Plano School in Plano, Texas. It covers 106,171 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 5, 2026. Method propdata-estimator-v6. ## This building 3805 Timberline Drive, Plano. School in Plano, Texas. Property ID spnjke4byzfnpm2. ## Facts **Facts about 3805 Timberline Drive, Plano** | Fact | Value | Source | | --- | --- | --- | | Address | 3805 Timberline Drive, Plano, TX 75074 | [USA Structures](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Building type | School | [USA Structures and SkyPSI estimator](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Place name | Armstrong Middle School | [Overture Maps places](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Place type | middle school | [Overture Maps places](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Footprint | 106,171 square feet | [USA Structures](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Perimeter | 1,581.96 feet | [USA Structures](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Height | 35.01 feet | [USGS 3D Elevation Program](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Height survey year | 2019 | [USGS 3D Elevation Program](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Stories | 3 stories | [USGS 3D Elevation Program](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Exterior wall area | 55,379 square feet | [SkyPSI estimator](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Parcel number | 2506459 | [County and state public records](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Land use | EX5 Rural land and non-qualified improvements (local SCH2) | [County and state public records](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#how-we-know) | | Year built | 2002 | [County and state public records](https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/#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 | $8,500 | $15,000 | $25,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift fits this building, most likely $15,000. ## Similar buildings nearby - [3600 Timberline Drive, Plano](https://skypsi.com/property/tx/dallas-fort-worth/spwz9j3mzgnm0pt-3600-timberline-drive-plano/) - [3544 14th Street, Plano](https://skypsi.com/property/tx/dallas-fort-worth/sph3cknptp8pgya-3544-14th-street-plano/) - [3540 14th Street, Plano](https://skypsi.com/property/tx/dallas-fort-worth/sp0jmqtgjrhf8g7-3540-14th-street-plano/) ## 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. - [County and state public records](https://comptroller.texas.gov/taxes/property-tax/): Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data. - [USA Structures](https://disasters.geoplatform.gov/USA_Structures/): Building footprints, heights and occupancy from FEMA's USA Structures. - [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. - [USGS 3D Elevation Program](https://www.usgs.gov/3d-elevation-program): Lidar elevation data that gives building heights where other sources have none. 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: County and state public records, USA Structures, Overture Maps places, SkyPSI estimator, USGS 3D Elevation Program. Parcel and address facts from county appraisal districts and state open-data programs (public records). https://comptroller.texas.gov/taxes/property-tax/ 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/ Business names: Overture Maps Foundation, overturemaps.org (places theme, CDLA Permissive 2.0). https://docs.overturemaps.org/attribution/ Building heights from the U.S. Geological Survey 3D Elevation Program (public domain). https://www.usgs.gov/3d-elevation-program Page: https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano/ JSON: https://skypsi.com/property/tx/dallas-fort-worth/spnjke4byzfnpm2-3805-timberline-drive-plano.json Content license: https://skypsi.com/content-license.txt