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New Castle County, Delaware Property Regulations

What you need to know about building setbacks and zoning in New Castle County.

No County-Level Zoning

Delaware handles land use regulations at the county level. All three Delaware counties have comprehensive zoning codes.

What This Means for Property Owners

  • Each county has its own unified development code
  • Setbacks vary by zoning district
  • Contact your county for specific requirements

What You Should Check Instead

For property regulations in New Castle County, check with:

  • New Castle County Land Use Department for zoning and setbacks
  • New Castle County Building Permits for construction permits
  • Delaware DNREC for environmental regulations
  • Deed restrictions recorded on your property

Why Property Lines Still Matter

Even without county zoning, knowing your exact property boundaries is essential in New Castle County:

  • Neighbor disputes — The #1 cause of rural property conflicts
  • Fence placement — Build on your land, not your neighbor's
  • Adverse possession — Delaware allows claims after 20 years of open use
  • Future sales — Boundary disputes can derail closings

See Your Property Lines in New Castle County

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