Wilmington Construction and Development Review

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Information to help you meet the requirements that apply to construction and rehabilitation projects

Planning, zoning, building and fire protection regulations are enforced for the health and safety of Wilmington residents. The City requires permits for new structures, changes to existing structures, and repairs including electrical, plumbing, and mechanical work. This webpage is designed to inform individual property owners and professional builders of city requirements and provide them with all relevant laws, forms and information sheets needed to meet the requirements that apply to a construction or rehabilitation project.

New Construction And Rehabilitation Development Review Process Step-by-Step Guide

The Development Review Process Step-by-Step Guide summarizes the 14 key steps to obtaining all permits and approvals needed to construct or improve a residential building in conformance with local and state policies and regulations. All projects that are required by law to obtain a permit or other approval from the City must be reviewed by the City before construction can proceed. This involves project review by multiple City of Wilmington staff and other government agencies. The project applicant pays for the costs of this review process through the payment of permit and inspection fees. Click here for a step-by-step guide to Wilmington’s Development Review Process. (Please note that this guide sets out the steps for a typical new residential construction project and the process may vary depending upon the details of your specific project.)

Relevant City Laws for Construction, Rehabilitation and Development

City of Wilmington, Delaware


Chapter 48 Zoning Code

Building and Construction

2012 ICC Codes Adopted in 2014 and Amendments

Sub. No. 2 to Ordinance No. 13-034

Chapter 4 Section4-191:  Existing Building Rehabilitation Code

Chapter 11 Section 11-36:  Sediment and Stormwater Management

Chapter 42: Streets, Sidewalks and Other Public Places

Chapter 45:  Utilities

Fire Prevention

Wilmington City Code, Chapter 12 - Fire Prevention and Protection

Current Delaware State Fire Prevention Regulations (adopted March 11, 2016)

Checklists, Applications and Forms for Construction and Development

City of Wilmington, Delaware

  1. Zoning Review
  1. Building Review
  1. Demolition Review
  1. Public Works Review
  1. Planning Review
  1. Fire Protection Review

Interpretations of Wilmington Delaware Code

These short documents are designed to provide guidance to applicants. Each interpretation document answers a specific question in an effort to offer clarity. These interpretations serve as professional commentary to the adopted City of Wilmington codes and accepted practices. Please bear in mind that each project is unique and may include elements that make the guidelines presented here inapplicable. The City Code is the primary authority, and in case of any inconsistency between these code interpretation summaries and either the Code or regulations enacted under the Code, the Code should be followed.

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