Historic Preservation in New Castle County, DE (2026)
1 county-level rule, plus city-specific rules for 1 city in New Castle County, Delaware.
Verified from official government sources
Note: These county rules apply to unincorporated areas of New Castle County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Historic-Cultural Monuments
New Castle County designates buildings, sites and districts as cultural landmarks through Historic overlay zoning under UDC Section 40.15.110. A resource must be at least 50 years old, or exceptionally important, and meet at least one of fourteen listed criteria tied to cultural, historic or architectural significance.
New Castle County Cultural Landmark Designation
Some RestrictionsNew Castle County Code § 40.15.110
A building, complex of buildings, structure, site, object or district may be designated for preservation as an Historic overlay zoning district if it is significant to the County as identified in this section. The resource must be at least fifty (50) years old, or exceptionally important to the County, and meet one (1) or any combination of the following criteria: ... D. Exemplifies the cultura...
Historic Preservation by City in New Castle County
1 cities in New Castle County have their own historic preservation rules. Each link goes to that city's dedicated page with code citations.
All New Castle County ordinances
See every category we cover for New Castle County: parking, noise, fences, fires, animals, pools, and more.
New Castle County Ordinance Hub →