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Building Development Division
Converting a Carport to a Garage


Note that the majority of such structures are difficult to convert and require foundation work. Steps 1-3 may be completed at the Development Services Building, 5 County Complex Court, Prince William, VA, 22192. Step 4 may be completed by telephone or online.

STEP ONE: Zoning Approval

The Zoning Division Counter is open 8 a.m. to 4 p.m., Monday through Friday. 

STEP TWO: Plan Approval

The Building Plan Intake Counter is open for plan submission 8 a.m. to 4 p.m., Monday through Friday.

  • Provide two copies of the zoning approval.
  • Bring a set of plans for the existing structure.
  • Bring two sets of plans on 11" x 17" paper drawn to a scale of ¼" = 1’ showing the proposed garage, with the plan view (view from above), elevation (a view from the side), and elevation section (cross section from side view with typical footing, wooden post, and all typical connection details).
  • Complete the appropriate permit applications: Building Permit, Electrical Permit, Mechanical Permit, and/or Plumbing Permit.
  • Obtain fee pricing.

STEP THREE: Permit Issuance

The Building Permitting Services Counter is open 8 a.m. to 4 p.m., Monday through Friday.

  • If the homeowner is the permit applicant, and will be responsible for the work, the homeowner must complete the Statement of Exemption.
  • If the contractor is the permit applicant, and will be responsible for the work, the contractor must provide a copy of their Virginia State Contractor License and Prince William County Business License. 
  • Review the Who Should Apply for a Permit Web page for more information.
  • Pay for permits based on the approved Building Development Fee Schedule.

STEP FOUR: Construction Inspections

In order for staff to conduct an inspection, you must call for the appropriate inspection, the permit must be affixed to the front window of the residence (or a location that can be viewed from the road outside the residence), and the approved plans must be available for the inspector to review at the time of inspection.


Building inspections are conducted between 8 a.m. and 3 p.m., Monday through Friday. Visit or call 1-866-457-5280 to schedule an inspection through the automated system. The systems will prompt for the permit number or 6 Digit IVR Pin Number, and inspection type code, which were provided at the time of permit issuance. The inspection process will vary depending on the extent of the work. The most common inspection types and codes are 103-building footing, 198-residential combination concealment, 199-residential combination final, and 401-plumbing ground work. 


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