Arlington County · VA

Home Additions in Arlington

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 Arlington County Inspection Services Division, coordinate the licensed trades, and hand you a written line-item scope before demolition starts.

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Permits & inspections in Arlington County

The paperwork is the part most contractors gloss over.

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 Arlington permit goes through the Arlington County Inspection Services Division. We pull it under our license and we hold the inspection schedule — you do not chase inspectors and you do not sign the application.

What we find in Arlington homes

The house decides half the scope.

Arlington's single-family stock is heavily 1920s–1950s bungalows and colonials on small lots, with a lot of condo and townhouse inventory alongside it. On the older houses, kitchen and bath projects almost always involve rebuilding the electrical and plumbing behind the finishes. In a condo, the building's own approval process and work-hour rules sit on top of the county permit.

What's included
  • Zoning, setback and lot-coverage review before design is finalized
  • Footings placed below the regional frost line
  • Footing and foundation inspections passed before backfill
  • Roofline, siding and HVAC tied into the existing house so it does not read as an add-on
Planning range — Arlington County
$180 – $340 / sq ft

A 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.

2220122203222042220522207BallstonClarendonRosslynFalls Church

Free Arlington walkthrough

A written, line-item scope for your home additions project. No design fee, no obligation.

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Also in Arlington

One contractor for the rest of the house

Our Arlington crews cover Ballston, Clarendon, Rosslyn, Falls Church and every ZIP in the area — 22201, 22203, 22204, 22205, 22207.

Arlington home additions questions

Straight answers

Do you handle home additions in Arlington, VA?

Yes. United Developers is a licensed contractor in Virginia (Class A #2705183185) and works throughout Arlington and Arlington County, including 22201, 22203, 22204, 22205 and nearby Ballston, Clarendon, Rosslyn.

Who pulls the permit for a Arlington home additions project?

We do, under our license, through the Arlington County Inspection Services Division. 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.

What does home additions cost in Arlington?

Most Arlington projects land in the $180 – $340 / sq ft range. That is a planning range for Arlington County, not a quote — your written price comes after a free on-site walkthrough.

Is the Arlington walkthrough and estimate free?

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.

How long does an addition actually take?

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.

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