Data Centers & Crypto Mining in New Castle County, DE (2026)
2 rules for unincorporated 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.
Data Center Zoning & Siting
New Castle County requires data centers over 20,000 square feet to sit at least 1,000 feet from residential districts, with the buffer reduced to 500 feet only if a Department-approved noise study proves compliance.
New Castle County Data Center Siting Rules
Significant RestrictionsNew Castle County Code § 40.03.343
No portion of the proposed data center building shall be located within one thousand (1,000) feet of a residential district. The Department may approve data center structures located less than one thousand (1,000) feet, but no closer than five hundred (500) feet from a residential district, provided that noise levels generated will not exceed the allowable noise levels permitted in this section.
Data Center Noise Limits
New data center projects over 20,000 square feet must keep noise at or below predevelopment levels and stay 1,000 feet from residential districts, backed by a mandatory noise study.
New Castle County Data Center Noise Rules
Some RestrictionsNew Castle County Code § 40.03.343(A)-(B)
A. The site shall be designed to minimize noise impact on neighboring residential properties and shall not generate noise levels that exceed the predevelopment noise level. A noise study shall be submitted to evaluate this impact and to verify consistency with Chapter 22 of the New Castle County Code. B. No portion of the proposed data center building shall be located within one thousand (1,000...
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