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 Fairfax County Land 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 Vienna permit goes through Fairfax County Land 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.
The Town of Vienna issues its own permits for properties inside the town limits, separate from Fairfax County — different submission, different inspectors. A Vienna mailing address does not always mean you are inside the town, so we confirm before filing.
Vienna's older core is mid-century ranch and colonial housing on generous lots, with newer infill and rebuilds mixed in. Additions and kitchen expansions are the common projects, and lot coverage is usually the constraint worth checking first.
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 Vienna crews cover Oakton, Tysons, Dunn Loring, McLean and every ZIP in the area — 22180, 22181, 22182.
Yes. United Developers is a licensed contractor in Virginia (Class A #2705183185) and works throughout Vienna and Fairfax County, including 22180, 22181, 22182 and nearby Oakton, Tysons, Dunn Loring.
We do, under our license, through Fairfax County Land 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.
The Town of Vienna issues its own permits for properties inside the town limits, separate from Fairfax County — different submission, different inspectors. A Vienna mailing address does not always mean you are inside the town, so we confirm before filing.
Most Vienna projects land in the $180 – $340 / sq ft range. That is a planning range for Fairfax 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.