Need house plans or an addition design in Castro County, TX? Castro County has about 7,380 residents (2024 estimate) and 3 incorporated cities and towns. Describe your project once: architects and designers who work in Castro County get back to you.
Zoning and building permits in Castro County are handled by each city, or by the county in unincorporated areas.
Services available in Castro County
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Custom home design
Design of a new home, from concept to permit and construction drawings.
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Addition or remodel plans
Plans for an addition or a major remodel, ready for the permit and the builder.
Frequently asked questions in Castro County
Do architects and designers cover the whole of Castro County?
Most pros work across the county and neighboring counties. Enter your ZIP code in the form and we match you with pros who serve your exact area.
Architects in Texas: all counties
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.