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Weston, Texas
Inside Weston's city limits, shrink-swell clay limits houses without basements on 77% of mapped land, higher than 82% of Texas cities. A shallow water table limits basements on under 1%.
That clay share is above Collin County's 72%. FEMA's flood data list 1 flood losses since 2016 in ZIP code 75009 overlapping the city.
Data as of October 13, 2026 · sources · in Collin County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
Foundation repair in Weston
Foundation repair in Weston: shrink-swell clay limits slab homes on 77% of Weston's mapped land, more than in 82% of Texas cities.
| Who designs the repair | The ASCE Texas Section's repair guidelines say a Texas-licensed engineer should evaluate the foundation and design the repair (2022 guidelines) |
| Prices | Cost guide ranges compared |
Soil under Weston city limits
| Expansive clay (limits slab homes) | 77.4% |
| High water table (limits basements) | 0.3% |
| Septic fields very limited | 81.2% |
| Clay swell (LEP, by area) | 9.5% |
| High-swell land (LEP 6%+) | 55.5% |
| Mapped soil | 2,895 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Houston Black | 44% | 91% |
| Austin | 22% | 93% |
| Heiden | 12% | 80% |
| Altoga | 9% | n/a |
| Tinn | 5% | n/a |
| Lewisville | 2% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 9.5% by land area here, and 56% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 77% of the mapped land.
Clay shrinks as it dries: 100% of Collin County is in drought on the latest map, and 77% of Weston's mapped land has shrink-swell clay.
USDA rates 81% of the land very limited for septic absorption fields.
Drought in Collin County
100% of Collin County is in drought (D1 or worse) on the October 13, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap Weston. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75009 | 100% | 1 | $77,069 |
Homes
Weston has fewer than 100 housing units in the ACS 2020-2024 estimates, too few for reliable shares.
Nearby cities
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status