Contractor & Builder Services

Plan Review Services will be unavailable from 2:30 p.m. to 4 p.m. on the second and fourth Tuesdays of every month due to employee development.


The Department of Land Use has announced the adoption of the following codes with amendments, effective March 1, 2015. 

  • International Building Code, 2015 edition
  • International Residential Code, 2015 edition
  • International Existing Building Code, 2015 edition
  • International Swimming Pool and Spa Code, 2015 edition

Additionally, the Department will enforce of the following codes on their respective effective date listed.

  • International Energy Conservation Code 2012 – March 1, 2015        
  • International Mechanical Code, 2015 edition – anticipated State adoption date of June 1, 2015
  • International Fuel Gas Code, 2015 edition – anticipated State adoption date of June 1, 2015 
  • International Plumbing Code, 2015 edition – anticipated State adoption date of June 1, 2015

In an effort to proactively inform customers, and give them time to prepare for important building code changes announced by the Department of Land Use, the Code Official will allow a three (3) month transition period for implementation of these codes from the date of adoption to May 31, 2015.  During this transition period, the County will accept projects designed to either the old codes or the new codes.  Submittals are not allowed to mix and match code provisions, and must identify which code edition is used for the design of the project.

All projects submitted on or after June 1, 2015 will be reviewed using the new regulations.  To receive additional extension between June 1, 2015 and August 31, 2015, the contractor or design professional must request the extension in writing and demonstrate the hardship for transitioning to the 2015 codes.

 The NCC amendments for the building code are available for download on the County’s website.  See for the administrative and adopted code amendment sections.  Code books are available for purchase through various vendors, including the International Code Council’s website at  New Castle County will also have code books available for purchase within the coming months.

 Additional information on the code changes specific to New Castle County can be found on the Department of Land Use website at To subscribe to automatic notices from Department of Land Use and other County services, including updates on this code adoption, see and sign up for email notifications.

Contractor Licensing
Information and forms relating to Contractor Licensing Requirements.
Contractor License Search

Inspection Checklists
Checklists used by New Castle County inspectors.
License Verification Forms

Online Permits
Pay permit fees online and access to online permits and inspection scheduling.
Parcel Search
Look up parcel information using the address or parcel number for a property.
Permit Requirements Sheets & Forms

Permit Search by Contractor
Review outstanding items for issued permits
Self Certifications
Utility contractors with online accounts can submit self-certification forms online.  To apply for an online account, see Online Services.

Training Opportunities
Nothing at this time. 
Note - The Plumbing-Heating-Cooling Contractors Association (PHCC), Associated Builders & Contractors (ABC), and the Delaware Building Officials Association (DBOA) will also sponsor training and testing throughout the year.