An addition is the one project where zoning can stop you before design starts. We are a licensed contractor in Virginia (Class A #2705183185) — we pull the permits through the Prince William County Department of Development Services, coordinate the licensed trades, and hand you a written line-item scope before demolition starts.
An addition starts with zoning, not construction: setbacks, lot coverage and height limits get reviewed before a building permit is issued, and in some neighborhoods there is a stormwater or historic review on top. Then come the footing and foundation inspections, which have to pass before backfill. This is the longest-lead permit of any project we do, and it is why we start the paperwork while the design is still being drawn.
Your Manassas permit goes through the Prince William County Department of Development Services. We pull it under our license and we hold the inspection schedule — you do not chase inspectors and you do not sign the application.
Manassas is an independent city with its own permit office, separate from Prince William County — and there is also a historic district downtown with design review for exterior work. As with Fairfax and Falls Church, a Manassas mailing address does not settle which jurisdiction you are in.
Manassas has an older core near the historic district and substantial 1980s–2000s subdivision development around it. In the newer neighborhoods HOA architectural review is the usual schedule risk; near the core, the houses themselves are the variable.
What's includedA planning range, not a quote. Your written line-item price comes after a free on-site walkthrough. HVAC, electrical and plumbing are performed by licensed trade partners.
A written, line-item scope for your home additions project. No design fee, no obligation.
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Our Manassas crews cover Manassas Park, Gainesville, Bristow, Centreville and every ZIP in the area — 20109, 20110, 20111, 20112.
Yes. United Developers is a licensed contractor in Virginia (Class A #2705183185) and works throughout Manassas and Prince William County, including 20109, 20110, 20111, 20112 and nearby Manassas Park, Gainesville, Bristow.
We do, under our license, through the Prince William County Department of Development Services. An addition starts with zoning, not construction: setbacks, lot coverage and height limits get reviewed before a building permit is issued, and in some neighborhoods there is a stormwater or historic review on top. Then come the footing and foundation inspections, which have to pass before backfill. This is the longest-lead permit of any project we do, and it is why we start the paperwork while the design is still being drawn.
Manassas is an independent city with its own permit office, separate from Prince William County — and there is also a historic district downtown with design review for exterior work. As with Fairfax and Falls Church, a Manassas mailing address does not settle which jurisdiction you are in.
Most Manassas projects land in the $180 – $340 / sq ft range. That is a planning range for Prince William County, not a quote — your written price comes after a free on-site walkthrough.
Yes. The walkthrough and the written scope are free and yours to keep whether or not you hire us. There is no design fee and no consultation invoice.
The build is rarely the long part — permitting and zoning review are. Expect the approval phase to run in parallel with final design, and expect us to give you a schedule that names the permit milestone rather than hiding it. We will tell you at the walkthrough if your lot has a setback or coverage problem, because that changes the whole conversation.