# 501 Westlake Park Blvd, Houston Office in Houston, Texas. It covers 108,827 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 14, 2026. Method propdata-estimator-v6. ## This building 501 Westlake Park Blvd, Houston. Office in Houston, Texas. Property ID sp9qfzr4ww7btw8. ## Facts **Facts about 501 Westlake Park Blvd, Houston** | Fact | Value | Source | | --- | --- | --- | | Address | 501 Westlake Park Blvd, Houston, TX 77079 | [USA Structures](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Building type | Office | [USA Structures and SkyPSI estimator](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Footprint | 108,827 square feet | [USA Structures](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Perimeter | 2,901.5 feet | [USA Structures](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Height | 370.83 feet | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Height survey year | 2018 | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Stories | 29 stories | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Exterior wall area | 1,075,973 square feet | [SkyPSI estimator](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Parcel number | 0410360010501 | [County and state public records](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Land use | F1 Commercial real property | [County and state public records](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Year built | 1982 | [County and state public records](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Stories on the parcel record | 28 stories | [County and state public records](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#how-we-know) | | Building area on the parcel record | 1,727,998 square feet | [County and state public records](https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/#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 and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $147,000 | $264,500 | $441,000 | ### Window cleaning **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $196,000 | $392,000 | $686,000 | | Windows inside and out, rope access | $215,500 | $431,000 | $764,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Boom lift and Rope access fit this building at the same cost, most likely $264,500. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Rope access fits this building, most likely $392,000. ## Similar buildings nearby - [Office in Houston](https://skypsi.com/property/tx/houston/sp6xwed6cj67pfb-office-houston/) - [580 Westlake Park Boulevard, Houston](https://skypsi.com/property/tx/houston/spd9apadjr7yzkt-580-westlake-park-boulevard-houston/) - [13501 Katy Fwy, Houston](https://skypsi.com/property/tx/houston/sprdzseybe6fecd-13501-katy-fwy-houston/) ## 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. - [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, 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/ 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/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston/ JSON: https://skypsi.com/property/tx/houston/sp9qfzr4ww7btw8-501-westlake-park-blvd-houston.json Content license: https://skypsi.com/content-license.txt