Wilmington Delaware Historic Exterior and Public Works Permit Guide

Wilmington exterior work, fences, windows, doors, demolition, historic district changes, public-way impacts, sewer, stormwater, water, and street closure items should be checked before filing a basic building permit.

Permit takeaway

Building permit applications involving exterior work in city historic districts are referred for design review, and building permits in those areas are issued only after the design review process is complete.

Zoning and placement

Historic overlay districts, neighborhood conservation districts, waterfront zoning, floodplain rules, public works review, right-of-way impacts, utilities, and street closures can all affect exterior projects.

Building and trade review

Reviewable exterior work can include maintenance that changes design or materials, rehabilitation, renovation, restoration, alterations, new construction, demolition, fencing, and substantial landscape disturbance.

Call before applying when

Call before applying if the project includes windows, doors, fencing, exterior materials, demolition, street closure, sidewalk impact, water or sewer work, stormwater work, or a historic or conservation district property.

Documents to prepare

• Building permit application
• Design review application when applicable
• Narrative description
• Plans and specifications
• Photographs of existing conditions

Inspection planning

• Confirm historic or conservation status
• Complete design review before permit issuance
• Coordinate public works review when needed
• Keep approved materials on site
• Complete final inspection steps

Official sources

• Wilmington Historic Preservation
• Wilmington Construction and Development Review
• Wilmington Document Library

This guide is a planning summary. Always verify the current requirements with the local office before starting work.