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About Planning and Zoning
Directions to the Zoning Office
Agricultural & Residential Districts
Commercial, Office & Industrial Districts
Overlay Districts (Code)
Zoning Permit Review & Approval
Zoning Text Amendments
Maps and Publications
Planning & Land Use Terms
How Do I Find .... ?
Land Development FAQs
Submit a Complaint
Find My Zoning District
Departments & Agencies
To apply for zoning approval for a residential addition:
No application form is required.
A processing fee payable in cash, check, or credit card.
Special Power of Attorney Affidavit
is required if the applicant is not the homeowner or a registered Prince William County contractor.
The applicant must draw the proposed addition to scale on the
house location survey plat
and submit three (3) copies to the Zoning Division of the Planning Office. The plat must be to scale and clearly show the surveyor's seal, signature and scale used.
Applicant must provide all dimensions of the proposed structure, setbacks to the property lines, and proposed use.
Additions shall maintain the same required yard setbacks as for the principle structure; setbacks vary by zoning district; see the
Zoning Ordinance Summary
for development standards by zoning district; Zoning staff will verify setbacks before issuing zoning approval.
The applicant may be required to demonstrate that the proposed building will meet Zoning Ordinance standard for additions: it must be an integrated part of the principal building (by location, materials and architectural design).
If property is identified as RPA (Resource Protection Area) on the overlay district map, written approval from Public Works Watershed Management (
is required prior to zoning approval. Visit the
GIS County Mapper
on the County's website to check for RPA and other zoning overlays.
The maximum building height is 35 feet.
For more information on other requirements, see
Building an Addition or Garage
A residential addition may possibly qualify for a Rehab Tax Exemption from the County’s Real Estate Assessment office. For more information, click
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Prince William County Government