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A building permit is required to build an addition on to an existing dwelling or to build a detached accessory building 120 square feet or more in floor size such as a garage. The Residential Addition Permit Application (PDF) outlines the information needed to apply for the permit.  For detached accessory buildings under 120 square feet, please see Zoning Permits. For more information about energy code requirements, please see Residential Energy Code Requirements.

You should also contact PUPS to request that any underground utilities are located before you start digging. Visit their website at www.sc811.com for more information.  If any utility lines are found, there may be utility easements or rights-of-way present on your property. These should be shown on a survey of your property. You can also contact our office to verify if any rights-of-way are present. Structures are not allowed to be placed in any easements or rights-of-way.

The Zoning Ordinance does not allow metal to be used as a building material for accessory structures at a residence except for architectural-grade roofing materials. The picture below shows some examples:

Examples of Metal Not Allowed

Homeowner Acting as the Contractor
I
f you are the property owner and wish to act as your own builder or general contractor, you will need to complete the Owner/Builder affidavit (PDF) and have it notarized and recorded at the York County Clerk of Court office. You will need to submit a copy of the recorded form with your building permit application. We also have notaries available at our office. Please review the Owner Builder Disclosure Information for Homeowners before choosing this option.

Contractors
Please review the Contractor Licensing Requirements.  If someone other than the state license holder will be applying for the permit, please complete the Authorization to Obtain Permits (PDF) form and have it notarized.

Process
Complete the Residential Addition Permit Application (PDF) and submit the application with two sets of construction plans outlining how the addition or building will be constructed. You will also need to submit a survey or site plan of your property showing the location of the proposed addition or building and the setbacks from each property line. Some surveys are available online at the York County deed search website. Contractors will need to submit a copy of the contract/ job estimate with the permit application. Also include specifications for any new windows that will be installed.

Plans can be submitted to our office or online. Plan review typically takes up to 48 hours. A representative will contact you when the permit is ready. If the plan reviewer finds any items that need to be corrected, you should receive an email with a list of those items to be corrected.

Contact
For further information regarding residential additions, contact any customer service representative at the Permit Application Center at 803-329-5590 or email the PAC.

Related Information
Authorization to Obtain Permits (PDF)
Building Codes Currently Enforced (PDF)
Construction Detail - Wall Cross Section (PDF)
Fee Schedule (PDF)
Incentives for All-Electric Appliances
Owner/Builder Affidavit (PDF)
Residential Addition Permit Application (PDF)
Residential Energy Code Requirements
Residential Inspection Checklist (PDF)

Important Information for Homeowners
Consumer Guide to Home Improvement Contracts (PDF)
Hire a Licensed Contractor (PDF)
Owner Builder Disclosure Information for Homeowners (PDF)
Owner Builder Affidavit (PDF)

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