New Castle County Department of Land Use
Official building department contact workstation for New Castle County, Delaware. Phone lines, online plan submittal portals, and physical office address.
🏛️ Office Address & Contact
⏱️ SLA & Plan Review Specifications
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Navigating Submittals & Plan Check Reviews at New Castle County Department of Land Use
The New Castle County Department of Land Use serves as the primary municipal Authority Having Jurisdiction (AHJ) for structural, electrical, plumbing, and mechanical code compliance across New Castle County, Delaware. The department oversees plan review intake, issues official building permits, and conducts mandatory field inspections for all residential and commercial construction under New Castle County Code Chapter 6.
To avoid submittal rejections or intake delays, contractors and architects submitting plans to New Castle County Department of Land Use must ensure that all submittals comply with enforced code standards (Delaware Coastal Zone Act compliance.) and include all required PE/RA engineering stamps, site utilities details, and contractor license filings.
New Castle County Department of Land Use utilizes electronic plan review (EPR) portals for digital submittal of vector PDF plan sets, structural engineering calculations, and COMcheck energy compliance reports. Ensure all sheets are unlocked and oriented correctly prior to uploading.
Field inspections must be scheduled at least 24 hours in advance by contacting the automated inspection hotline at (302) 395-5400 or through the online portal. Approved job-site plans and permit inspection cards must be physically posted on-site at all times.