Sussex County, DE - 2026 Building Permit Guide

Permit Authority

All unincorporated areas of Sussex County. The Building Code Office also serves as the authority for 14 incorporated towns that have contracted with the county rather than maintaining their own building departments.

Department

Sussex County Building Code Office

Address

2 The Circle, Georgetown, DE 19947

Phone

(302) 855-7720

Website

https://sussexcountyde.gov/building-permits-and-licenses

Online Permit Portal

Application Process

1. Determine if your project requires a permit by reviewing county requirements or contacting the Building Code Office.
2. Obtain and complete the appropriate permit application worksheets from the county website.
3. For projects disturbing 5,000 square feet or more, obtain a Residential Standard Plan (Sediment and Erosion Control Plan) before any site disturbance.
4. Prepare construction plans meeting county standards.
5. Submit completed application with plans, required documents, and fees in person at 2 The Circle, Georgetown.
6. Plans are reviewed by Building Code staff.
7. Permit is issued upon approval; permit must be posted on the job site.
8. Schedule inspections at each required construction stage via the Self Service Portal or by phone.
9. Obtain final inspection and certificate of occupancy or completion upon project completion.

Typical processing time: Not publicly specified; contact office for current timelines.

Source: Sussex County Building Code Office

General Requirements

All new construction, remodeling, additions including single- and multi-family dwellings, commercial construction, accessory structures (sheds, gazebos, pergolas, carports, playhouses, detached garages, pole buildings), agricultural buildings, greenhouses, pools, solar panel installations, retaining walls, and manufactured homes. Minimum threshold: fair value of construction must exceed $300.

Required Documents

• Completed permit application worksheets
• Construction plans (scale drawings)
• Residential Standard Plan/Sediment and Erosion Control Plan for projects disturbing 5,000+ square feet
• Municipal approval letter if applicable for projects in municipalities that require pre-approval

Permit validity

Not publicly specified; contact office for current rules.

Building code

2021 International Building Code (IBC) Chapters 1-26 and 35; 2021 International Residential Code (IRC) Chapters 1-10. Adopted August 9, 2022, effective January 1, 2023.

Owner-builder

Not detailed on public pages; contact office.

Contractor requirements

State of Delaware contractor license required.

Fees

Plan check fee

Included in permit fee structure.

Permit fee formula

Fees set annually as part of county budget; valuation-based for most permit types.

Payment note

Payment due at time of permit issuance at Georgetown office.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

• Construction with a fair value of less than $300
• Carports less than 400 square feet (excluded from inspections, though a permit may still be required—confirm with office)
• Automatic fire sprinkler systems in one- and two-family dwellings and townhouses (exempted from sprinkler mandate, not from general building permit)
• Routine maintenance not involving structural work

Important: Exempt from building permit does not mean exempt from other applicable requirements. Confirm specific items with the Building Code Office before proceeding.

Inspections

How to Schedule

• Self Service Portal (online)
• (302) 855-7720 (phone)

Inspection hours

8:30 AM - 4:30 PM, Monday-Friday

Typical inspection sequence: Typical sequence: Foundation/footing, framing, rough-in (electrical/plumbing/mechanical), insulation, final inspection.

Additional Resources

• Building code: 2021 International Building Code (IBC) Chapters 1-26 and 35; 2021 International Residential Code (IRC) Chapters 1-10. Adopted August 9, 2022, effective January 1, 2023.
• Verify contractor license: Delaware Contractor License Information
• Zoning information: View zoning info
• Building Code History
• Delaware Code, Title 9, Chapter 63 (Building Permits)
• City/Town Requirements (Permitting) PDF
• License lookup guide: Delaware Contractor License Requirements
• Contract template: Delaware Homeowner-Contractor Agreement
• Delaware hub: Delaware Contractor License & Permit Hub

Frequently Asked Questions

Sussex County Building Permit FAQ

Do I need a building permit in unincorporated Sussex County, DE?

All new construction, remodeling, additions including single- and multi-family dwellings, commercial construction, accessory structures (sheds, gazebos, pergolas, carports, playhouses, detached garages, pole buildings), agricultural buildings, greenhouses, pools, solar panel installations, retaining walls, and manufactured homes. Minimum threshold: fair value of construction must exceed $300.

How much does a building permit cost in unincorporated Sussex County, DE?

Fees are calculated as: Fees set annually as part of county budget; valuation-based for most permit types.. Plan check fee: Included in permit fee structure..

How do I apply for a building permit in unincorporated Sussex County, DE?

1. Determine if your project requires a permit by reviewing county requirements or contacting the Building Code Office. 2. Obtain and complete the appropriate permit application worksheets from the county website. 3. For projects disturbing 5,000 square feet or more, obtain a Residential Standard Plan (Sediment and Erosion Control Plan) before any site disturbance. 4. Prepare construction plans meeting county standards. 5. Submit completed application with plans, required documents, and fees in person at 2 The Circle, Georgetown. 6. Plans are reviewed by Building Code staff. 7. Permit is issued upon approval; permit must be posted on the job site. 8. Schedule inspections at each required construction stage via the Self Service Portal or by phone. 9. Obtain final inspection and certificate of occupancy or completion upon project completion.

How long does it take to get a building permit in unincorporated Sussex County, DE?

Typical processing time is Not publicly specified; contact office for current timelines..

What work is exempt from building permits in unincorporated Sussex County, DE?

The following work is generally exempt: Construction with a fair value of less than $300; Carports less than 400 square feet (excluded from inspections, though a permit may still be required—confirm with office); Automatic fire sprinkler systems in one- and two-family dwellings and townhouses (exempted from sprinkler mandate, not from general building permit); Routine maintenance not involving structural work. Note: Exempt from building permit does not mean exempt from other applicable requirements. Confirm specific items with the Building Code Office before proceeding.

How do I schedule a building inspection in unincorporated Sussex County, DE?

Inspections can be scheduled via: Self Service Portal, (302) 855-7720.