# 6400 Fannin St, Houston Medical in Houston, Texas. It covers 350,221 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 6400 Fannin St, Houston. Medical in Houston, Texas. Property ID sp6td5n3bpp0d69. ## Facts **Facts about 6400 Fannin St, Houston** | Fact | Value | Source | | --- | --- | --- | | Address | 6400 Fannin St, Houston, TX 77030 | [USA Structures](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Building type | Medical | [USA Structures and SkyPSI estimator](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Place name | Children's Memorial Hermann Hospital | [Overture Maps places](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Place type | childrens hospital | [Overture Maps places](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Footprint | 350,221 square feet | [USA Structures](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Perimeter | 10,435 feet | [USA Structures](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Height | 178.25 feet | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Height survey year | 2018 | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Stories | 13 stories | [USGS 3D Elevation Program](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Exterior wall area | 1,860,024 square feet | [SkyPSI estimator](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Parcel number | 1368420010001 | [County and state public records](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/#how-we-know) | | Land use | X2 Totally exempt property | [County and state public records](https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-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 by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash (drone) | $67,500 | $127,000 | $211,500 | | Facade wash with mold or growth treatment | $101,500 | $186,000 | $321,000 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $127,000 | $228,000 | $380,500 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $25,500 | $50,500 | $84,500 | | Windows inside and out | $42,500 | $84,500 | $152,000 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $169,000 | $338,000 | $591,500 | | Windows inside and out, rope access | $186,000 | $372,000 | $659,000 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $127,000. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $50,500. ## Similar buildings nearby - [6400 Fannin St, Houston](https://skypsi.com/property/tx/houston/spchg1eq94hnvcw-6400-fannin-st-houston/) - [6400 Fannin St, Houston](https://skypsi.com/property/tx/houston/spck27jysbtq77c-6400-fannin-st-houston/) - [6400 Fannin St, Houston](https://skypsi.com/property/tx/houston/sphp44br38p8mkx-6400-fannin-st-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. - [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/houston/sp6td5n3bpp0d69-6400-fannin-st-houston/ JSON: https://skypsi.com/property/tx/houston/sp6td5n3bpp0d69-6400-fannin-st-houston.json Content license: https://skypsi.com/content-license.txt