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Zoning Guide

New Castle, Delaware Zoning & Land Use Guide

Last updated: Verified:

Key Zoning Facts

Planning Department
City of New Castle Building & Zoning Department(302) 322-9801
Building Code Edition
Delaware State Fire Prevention Code (references IBC/IRC)
ADUs Allowed
No
Primary District
Информация не найдена — Zoning districts — see municipal code (Chapter 230)
Max Height
Информация не найдена — уточняйте в планировочном отделе города

New Castle, Delaware Zoning Overview

New Castle is a historic incorporated city on the Delaware River in New Castle County, with a population of approximately 5,500. Founded in the 17th century, New Castle is one of Delaware's oldest communities and has a nationally recognized historic district. Zoning is administered by the City of New Castle Building & Zoning Department.

Note: "New Castle" the city and "New Castle County" are distinct entities. This page covers the incorporated City of New Castle. For unincorporated areas of New Castle County (such as Bear, Brookside, Claymont), see the respective community pages on this site.

Zoning Districts

Zoning districts for the City of New Castle are established in Chapter 230 of the city code, available on eCode360 at ecode360.com/NE1562.

Информация не найдена — уточняйте в планировочном отделе города. Specific district codes, setback requirements, and development standards were not independently verified in this guide. Consult the city code or contact Building & Zoning at (302) 322-9801.

Historic District

New Castle has a significant historic district. Properties within the historic district may be subject to design review and additional approval requirements from the Historic District Commission before alterations, additions, or demolition are permitted. Contact Building & Zoning for guidance on historic district requirements.

ADU Rules

Delaware has no statewide ADU law. Contact Building & Zoning at (302) 322-9801 or review Chapter 230 of the city code for ADU provisions in your district.

Development Process

  1. Zoning Verification — Check the zoning map or call (302) 322-9801
  2. Historic Review — If in the historic district, obtain Historic District Commission approval
  3. Site Plan Review — Required for commercial and multi-family projects
  4. Building Permit — Apply through Building & Zoning
  5. Inspections and Certificate of Occupancy

Key Considerations

  • New Castle's location on the Delaware River means significant flood zone exposure — check FEMA maps
  • Historic district properties have additional design requirements
  • Distinguish between City of New Castle and New Castle County when seeking zoning information

Disclaimer: This guide provides general information about zoning in New Castle, Delaware and should not be relied upon as legal advice. Always verify current regulations with the City of New Castle before making development decisions.

Regulatory Layers That Apply in New Castle

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Delaware

  • Building Code: Delaware State Fire Prevention Code (references IBC/IRC)
View Delaware zoning overview

County — New Castle County

  • Role: County-level property records and tax assessment; incorporated city has its own planning jurisdiction.

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: No
  • New Castle's historic district has additional design review requirements. Check for historic preservation restrictions on older properties.

Primary Zoning Districts

Информация не найденаZoning districts — see municipal code (Chapter 230)
Min Lot
Информация не найдена — уточняйте в планировочном отделе города
Max Height
Информация не найдена — уточняйте в планировочном отделе города
Front Setback
Информация не найдена — уточняйте в планировочном отделе города
Side Setback
Информация не найдена — уточняйте в планировочном отделе города
Rear Setback
Информация не найдена — уточняйте в планировочном отделе города

ADU Rules in New Castle

ADUs:Not Allowed

Permit Costs & Timelines

Permit Costs & Timelines

Specific permit fee schedules for New Castle are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check New Castle permit fees →

Official Sources

City of New Castle Building & Zoningnewcastlecity.delaware.govOfficial sourceNew Castle Planning Commissionnewcastlecity.delaware.govOfficial sourceNew Castle City Code (eCode360)ecode360.comOfficial sourceNew Castle Zoning Map (PDF)ecode360.comOfficial source

Frequently Asked Questions

How do I find the zoning for my property in New Castle?
View the official zoning map at https://ecode360.com/documents/NE1562/public/559342310.pdf or contact Building & Zoning at (302) 322-9801. The full code is at https://ecode360.com/NE1562.
What is the phone number for New Castle's Building & Zoning Department?
City of New Castle Building & Zoning: (302) 322-9801. Building Official & Fire Marshal Jeffrey Bergstrom: (302) 322-9813. City Hall is at 220 Delaware Street, New Castle, DE 19720.
Are there historic district rules in New Castle?
Yes. The City of New Castle has a significant historic district with design review requirements. Contact Building & Zoning at (302) 322-9801 or visit https://newcastlecity.delaware.gov for historic district guidelines.
What is the difference between 'City of New Castle' and 'New Castle County'?
These are completely separate jurisdictions. The City of New Castle is a small historic incorporated city on the Delaware River. New Castle County is the largest county in Delaware, with its own government covering the surrounding unincorporated areas. If you have property in an unincorporated area near New Castle, your zoning is governed by New Castle County, not the City of New Castle.