Building Inspections

The Office of Inspections is responsible for conducting inspections of building projects to ensure their compliance with the adopted county building codes. Our certified inspectors perform all building, mechanical, plumbing and site inspections.

Scheduling an Inspection

Those contractors with an on-line account and password can schedule inspections 24/7 from our Online Services page. Homeowners and those without an online password may call the scheduling line at 302-395-5515 between 8 a.m. - 11 a.m.

For questions about your inspections, call 302-395-5572.


Be prepared for your inspection!  Review the document linked below for information about what is required at residential inspections. 
Residential Inspection Description



Top Failure Items

In addition, please review the list of the most frequently failed inspection items here.

Building Codes

For information concerning building codes, see the Code Enforcement Division, as well as "Code Opinions" below.

Electrical Inspections

All electrical inspections are regulated by the State of Delaware. For questions, please visit or call (302) 744-4500 or your licensed electrician.

Code Opinions

The New Castle County Inspections Section strives to provide accurate and consistent applications of the International Codes for our customers. However, from time to time an occasion will arise where we need input from the International Code Council (ICC) regarding a specific code section. In these cases, a request is sent to the ICC and a Staff Code Interpretation is provided in return. These impartial third-party decisions are receive from the ICC to assist jurisdictions in applying the code fairly and accurately. The Interpretations that we have accumulated for past and present code adoptions are listed here: Code Opinions
For any questions or comments, please contact the Inspections Department at 302-395-5572.
  1. 2018 International Code Adoption Review Meetings

    The Department of Land Use announces the upcoming review of the 2018 International Codes and schedule of code review meetings. Read on...
  2. Certificates of Occupancy now available online

    Please be advised that Certificates of Occupancy are no longer being mailed or emailed, but are now available online for viewing and/or printing the morning after being issued. Read on...
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