Prince William County building department

Prince William County’s Building Development Division (BDD), part of the Department of Development Services, reviews building plans, issues building and trade permits, performs construction inspections, and enforces the Virginia Uniform Statewide Building Code (VUSBC). Zoning approval, site plans, and land development are handled by sister divisions in the same Development Services building at 5 County Complex Court, so most residential projects move through Zoning first and then BDD.

Who BDD serves (and who it doesn’t)

Development Services does not issue permits for the Town of Dumfries, the Cities of Manassas and Manassas Park, state-owned buildings, or federal property (other than underground storage tanks). The Towns of Occoquan, Haymarket, and Quantico handle their own zoning and site plan approvals, but BDD still issues building and trade permits for properties in those towns. The county’s CountyMapper GIS tool lets you check jurisdiction by address or GPIN before you apply. See city or county: who issues your building permit for background.

Do I need a permit? County thresholds

The county’s residential guidance (one- and two-family dwellings and townhouses; condos and apartments are treated as commercial) lists these cutoffs:

Project	Building permit required when…
Deck or porch	Any part of the floor is 16.5 inches or more above finished grade, or it carries extra load such as a hot tub
Shed / accessory building	Larger than 256 sq ft (trade permits still required for wiring, plumbing, etc. in smaller sheds)
Fence	Only when used as a swimming pool barrier or for pedestrian safety
Retaining wall	Supports more than 3 ft of unbalanced fill, or any surcharge from a structure, road, or driveway above
Pool or spa	Impounds more than 2 ft of water and is larger than 150 sq ft
Masonry or concrete wall	Exceeds 6 ft in height

Permits are always required for additions, garages and carports, basement finishing, wet bars or secondary food-prep areas, structural changes, new circuits or receptacles, replacing gas or oil furnaces and gas water heaters, prefabricated fireplaces and wood stoves, accessibility ramps, and the backflow device on a lawn irrigation system. Re-roofing, siding repair, same-size window replacement with no framing changes, replacing an electric water heater in kind, and swapping a heat pump or AC condenser in the same location do not need a permit.

Zoning approval is separate and always required for decks, sheds, fences, additions, garages, pools, hot tubs, and retaining walls, even where no building permit is needed. The Zoning counter is at 703-792-6830 and issues no approvals after 4 p.m.

Applying through ePortal

Prince William’s ePortal (egcss.pwcgov.org/SelfService), a Tyler EnerGov Citizen Self Service site, handles applications, electronic plan (ePlan) submissions, revisions, fee payments, and permit and plan-status searches. Most building plans now have to be submitted through ePortal following the county’s Customer ePlans Guide. One exception: simple residential decks can still get a same-day review at the Building Plan Intake counter if you arrive by 10:30 a.m. with two copies of the zoning approval and two 11” x 17” plan sets at ¼” = 1’ scale. You can skip the plan drawings if you build to the county’s Typical Residential Deck Design, which can’t be used for custom decks.

Who signs the permit: a homeowner doing the work personally completes a Statement of Exemption. A contractor named as permit holder must provide a copy of the original Virginia DPOR contractor’s license (the county won’t accept website printouts) and a Prince William County business license. If you sign the Statement of Exemption and then knowingly hire an unlicensed contractor, that is a Class 1 misdemeanor under Virginia Code § 54.1-1115. The county also licenses residential home improvement contractors (703-792-6924). See owner-builder permits.

Fee highlights (FY2027 schedule)

The adopted Building Development Fee Schedule, effective July 1, 2026, includes a 2% Code Academy levy, a 14% technology surcharge, and a 10% indirect-cost surcharge. Total fees for selected residential items:

Item	Total fee
New dwelling/addition, per sq ft of gross floor area (incl. basements, garages)	$0.1584
Minimum: new dwellings, garages, additions, decks over 250 sq ft, sheds over 256 sq ft	$274.80
Minimum: decks and detached sheds 250 sq ft or less	$110.65
Finished basement, per sq ft	$0.3167
Residential repairs/alterations	$110.65
Residential certificate of use and occupancy, per unit	$123.50
Reinspection, work not ready	$164.15

If you pull a permit to abate a violation notice, the county adds a surcharge equal to 100% of the calculated permit fee, up to $2,500. Minimum-fee permits are not refundable, and refund requests made more than 180 days after payment are denied.

Codes in effect

The 2021 VUSBC took effect statewide on January 18, 2024. Prince William allowed either the 2018 or 2021 edition during a one-year transition, and since January 18, 2025 all applications have had to comply with the 2021 VUSBC. That edition references the 2021 IBC, IRC, IMC, IPC, IFGC, IECC, and IEBC, plus the 2020 National Electrical Code. Plans must state which code year they use and can’t mix editions.

Inspections

Schedule, cancel, or check inspection results in ePortal or through the automated phone system at 1-866-457-5280. On the phone system, press 3 to schedule and enter your 6-digit IVR PIN. Both systems run seven days a week, but you must schedule by 3 p.m. on the workday before the inspection. Cancellations are accepted until midnight on the prior workday. Building inspections take place from 8 a.m. to 3 p.m. on weekdays. New homes, additions, alterations, and basement finishes built under the IRC go through the Combination Inspection Program, which uses codes 198 (combination concealment) and 199 (combination final). The permit has to be posted where it can be seen from the road, and approved plans must be on site. All final inspections must pass before a certificate of use and occupancy is issued.

Contacts and hours

• Main BDD / plan review: (703) 792-6930, TTY 711. Counters are open 8 a.m. to 4 p.m. weekdays, with tickets issued until 4 p.m. All counters close from 8 to 9 a.m. on the 2nd and 4th Wednesday of each month.
• Building Plan Intake: 703-792-4040
• Building Permitting Services: 703-792-6924
• Code Compliance: 703-792-6931
• Construction Inspections Branch: 4379 Ridgewood Center Drive, Suite 202, 703-792-7006. Inspectors are in the office 7:30 to 9 a.m. and 2 to 4 p.m.

If work was done without permits, the county’s unpermitted-work page explains how to get it permitted, inspected, and finaled after the fact.