STR guests in unincorporated New Castle County are subject to the county noise ordinance (§22.02.008). Quiet hours are 9 PM–7 AM weekdays.
No STR-specific noise rules exist at the county level. STR operators are responsible for ensuring guests comply with New Castle County Code §22.02.008. Hosts may be held responsible for persistent guest noise violations under the county code. This noise rules rule under New Castle County's short term rentals ordinances applies to unincorporated areas of New Castle County. For current statutory text, amendments, enforcement procedures, fines, appeal options, and any exemptions that may apply to your situation, contact New Castle County code enforcement directly or consult the official Delaware municipal code library. Ordinances change periodically; always verify with local staff before relying on summary information.
County police can cite STR guests or operators for noise disturbances.
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See how New Castle County's noise rules rules stack up against other locations.
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