Ashburn, Virginia
Custom home builders in Ashburn, VA
9 custom home builders say they work in Ashburn, VA, and 4 say they build on a lot you already own. Permit steps for a teardown or new house, published prices, and who to call.
9builders work here
4build on your lot
Loudoun Countyissues permits
Ashburn is mostly planned communities, so a custom build here usually means an individual lot or acreage rather than a teardown in an older neighborhood.
Builders who work in Ashburn
We found 9 builders that name Ashburn (or all of Loudoun County) as a place they build. 4 of them say on their websites that they build on a lot you already own; the rest build custom homes but don’t say either way. Builders that say they build on your lot are listed first, then the rest, each group alphabetical. It is not a ranking.
What builders here publish about price
Most custom builders don’t post prices. These 2 do, and they give you a starting point before your first meeting:
| Builder | What it publishes |
|---|---|
| AZA Builders | $275-$350, $375-$500 and $550-$800+ per sq ft (three published tiers) |
| Horizon Building | Custom homes about $1.2M-$5M+; whole-home remodels about $400K-$2M |
None of these figures include the land. Try the estimator, or see what homeowners report in real build costs.
Permits for a new house in Ashburn
Who issues permits: Loudoun County.
Ashburn is unincorporated Loudoun County, so permits come from Loudoun County Building and Development.
Loudoun County issues a Building and Zoning Permit for a new house. A grading permit is needed once you disturb 5,000 sq ft or more, or on steep slopes, and a Health Department permit if the lot uses a well or septic system. Contractors need a Virginia contractor license and a Loudoun County business license (Loudoun County, residential construction permits).
Rules change, so confirm the current requirements with the permit office before you buy a lot or sign a design contract.
Before you call a builder
- Confirm the jurisdiction. Look up your parcel so you know exactly which county, town or city issues your permits.
- Gather your lot facts: survey or plat, lot size, and whether it is on public water and sewer.
- Set a budget range that includes demolition and site work, not just the house. Our estimator helps.
- Shortlist three builders who work in Ashburn, check each one’s Virginia Class A contractor license, and ask them all the same questions.
Not sure where to start? Tell us about your lot and we’ll introduce you to builders who work in Ashburn.
New homes and teardowns
Loudoun County doesn’t publish permit data we can read yet, so we can’t count new homes here. Ask the permit office, or see the teardown map for nearby counties.
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Frequently asked questions
How many custom home builders work in Ashburn?
We found 9 builders that name Ashburn or its county as a service area, as of October 17, 2026. 4 of them say they build on a lot the client already owns.
Who issues building permits in Ashburn?
Loudoun County. Ashburn is unincorporated Loudoun County, so permits come from Loudoun County Building and Development.
Can I tear down my house in Ashburn and build a new one?
Usually, yes, as long as the new house meets zoning rules for setbacks, height and lot coverage. You need a demolition permit first and then a new building permit, plus grading or sediment control approval if you disturb enough land.
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Questions from homeowners
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Building in Montgomery County, Maryland instead? · Lots and teardowns · Real build costs