Need a custom home builder in New Castle County, DE? New Castle County has about 588,093 residents (2024 estimate) and 13 incorporated cities and towns. Describe your project once: custom home builders who work in New Castle County get back to you.
Building permits in New Castle County are issued by each city, or by the county in unincorporated areas.
Services available in New Castle County
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Custom home construction
Construction of a custom home on the owner's lot, from permit to move-in.
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Design-build
Builder who handles both the design and the construction of the home.
Frequently asked questions in New Castle County
Do custom home builders cover the whole of New Castle 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.
Custom Home Builders in Delaware: 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.