One Loudoun, a Census place of 3,309 people in ZIP 20147, has 1,446 homes built and 1,718 more approved. It is zoned for Riverside High.
Last checked Oct. 19, 2026. The boundary is the U.S. Census Bureau’s One Loudoun census-designated place (TIGERweb); people and homes come from the Census Bureau’s 2020-2024 American Community Survey (data.census.gov) and Loudoun County’s Residential Communities layer (July 1, 2025); school zones are the county’s 2026-27 elementary, middle and high school zone layers; ratings are the Virginia Department of Education’s School Quality Profiles; home values are the Zillow Home Value Index (Zillow Research); buses are Loudoun County Transit’s GTFS feed (Sept. 27, 2026); parks, stores and road distances come from OpenStreetMap (© OpenStreetMap contributors).
One Loudoun is the mixed-use town center at Route 7 and Loudoun County Parkway, and the homes, apartments and offices built around it. The Census Bureau counts it as its own place, the One Loudoun census-designated place: about 400 acres and 3,309 residents, outside the Census Bureau’s Ashburn boundary but with Ashburn addresses in ZIP code 20147. For the restaurants, stores and events, see our One Loudoun guide; this page is about living there.
What this means for you
- Zoned high school: Riverside High, 19019 Upper Belmont Place, Leesburg (nearly every address)
- Typical home value, ZIP 20147: $746,114 in September 2026, according to Zillow; the Census median home value for One Loudoun is $876,700
- Nearest highway: Route 7 at the Loudoun County Parkway interchange, on its northern edge; the nearest Dulles Greenway exit is about 6.1 miles by road
- Construction: 1,718 more homes are approved and not yet built, the county says
Where it is
The Census place runs south from Route 7 along the west side of Loudoun County Parkway. Inside, the main streets are Russell Branch Parkway, Northpark Drive, Exchange Street and Marblehead Drive, with Atwater Drive and Ashbrook Place at the edges. Potomac Green and Ashburn Village are to the west. Across Loudoun County Parkway is the University Center area.
Homes and people
Loudoun County lists One Loudoun as an approved community still being built. Its Residential Communities layer counts, as of July 1, 2025:
| Community | Single-family | Townhouses | Condos and apartments | Approved, not yet built |
|---|---|---|---|---|
| One Loudoun | 265 | 397 | 633 | 1,717 |
| Ashbrook Residential | 0 | 0 | 151 | 1 |
The county lists One Loudoun as partially age-restricted. The Census Bureau’s 2020-2024 American Community Survey puts 1,113 households in the place, 882 of them, or 79%, in homes their owners live in. Its median home value estimate is $876,700. Census figures are survey estimates with margins of error, especially for a place this small.
Schools
For 2026-27, 99.9% of the county’s 1,268 address points in One Loudoun are zoned for:
| School | Grades | Address | State rating |
|---|---|---|---|
| Steuart W. Weller Elementary | K-5 | 20700 Marblehead Drive | Meets Expectations |
| Belmont Ridge Middle | 6-8 | 19045 Upper Belmont Place, Leesburg | Fully Accredited |
| Riverside High | 9-12 | 19019 Upper Belmont Place, Leesburg | Fully Accredited |
Weller Elementary is inside the Census place. Its rating is its level in Virginia’s School Performance and Support Framework. Belmont Ridge and Riverside have Leesburg mailing addresses and are both Fully Accredited for 2025-26; Riverside’s state report shows a 99.4% graduation and completion rate. Check one address in the LCPS LABEL lookup and see our schools guide.
Home values
Zillow’s Home Value Index for ZIP 20147 was $746,114 in September 2026, up 0.9% from $739,759 in September 2025, according to Zillow’s ZIP code file. Zillow’s figure for all of Ashburn was $795,910, up 0.5%. Zillow does not publish a figure for One Loudoun alone. The index is a modeled typical value, not a sale price. See our home prices guide.
Parks and trails
- One Loudoun Central Park, inside the town center, as mapped on OpenStreetMap. The One Loudoun guide covers the plaza and splash pad.
- Heron Overlook Park, 20570 Heron Overlook Plaza, about a quarter mile east: a 1.5-mile natural trail loop through wetlands.
- Potomac Green Neighborhood Park, 20750 Marblehead Drive, next door in Potomac Green.
Getting around
Distances are measured on the road network from the middle of the Census place (OSRM routing on OpenStreetMap data); they are not drive times.
| To | Distance |
|---|---|
| Ashburn Metro station (Silver Line) | about 5.7 miles |
| Dulles Greenway Exit 4 (Belmont Ridge Road) | about 6.1 miles |
| Washington Dulles International Airport | about 9.6 miles |
Loudoun County Transit’s GTFS data show these fare-free local routes stopping inside One Loudoun:
- Routes 331 and 332, between One Loudoun and the Ashburn Metro station
- Route 62 (Ashburn Connector)
- Route 70, Leesburg to Sterling along Route 7
Routes 331 and 332 also serve the One Loudoun Park and Ride. See our getting around guide.
Groceries and everyday stores
OpenStreetMap lists Trader Joe’s, 44755 Brimfield Drive, inside One Loudoun. Close by: CVS Pharmacy, 44835 Russell Branch Parkway; Giant, 44110 Ashburn Shopping Plaza; Harris Teeter, 20070 Ashbrook Commons Plaza; and Lidl, 44175 Ashbrook Marketplace Plaza, each about a mile or less.
How to check an address
Search the parcel on Loudoun County’s WebLogis map for zoning and the assessed value, then check the schools in LABEL. Real estate tax is billed by Loudoun County; see our property tax guide. All 10 areas are on our Ashburn neighborhoods guide.
Frequently asked questions
How many people live in One Loudoun?
3,309, according to the Census Bureau’s 2020-2024 American Community Survey estimate for the One Loudoun census-designated place, in 1,113 households.
What schools serve One Loudoun homes?
For 2026-27, nearly every county address point in One Loudoun is zoned for Steuart W. Weller Elementary, Belmont Ridge Middle and Riverside High.
Are more homes being built at One Loudoun?
Yes. Loudoun County’s residential communities data count 1,446 homes built at One Loudoun and the Ashbrook apartments next to it, with 1,718 more approved but not yet built, as of July 1, 2025.
Is One Loudoun a good place to live?
That depends on the household. The facts: One Loudoun is a mixed-use town center of 3,309 residents with a central park, a Trader Joe’s and fare-free buses to the Ashburn Metro station. The Census median home value there was $876,700, and Zillow’s typical value for ZIP 20147 was $746,114 in September 2026.
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