3 rules for unincorporated New Castle County, Delaware.
Verified from official government sources
New Castle County does not require a permit for typical residential garage and yard sales in unincorporated areas. Signs must comply with UDC sign rules. Frequency limits apply under property maintenance and home business provisions. The City of Wilmington and City of Newark have their own rules, which may require registration or limit frequency.
New Castle County does not set a specific numerical limit on yard sales per year at the county level. Frequent or ongoing sales can trigger UDC Article 40 home occupation or unlicensed retail provisions. Wilmington and Newark may impose explicit limits (commonly 2 to 4 sales per year). HOAs in many subdivisions impose stricter limits enforced privately.
New Castle County does not set specific garage sale hour limits in unincorporated areas. Sales are constrained by the general noise ordinance (NCC Code §22.04.001), which limits daytime noise to approximately 7 AM to 9 PM. Wilmington and Newark often limit sales to 8 AM or 9 AM through 6 PM or dusk. Traffic and parking congestion rules apply.
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