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$2,175,000
New Listing

43044 UNISON KNOLL CIRCLE
ASHBURN, VA 20148

For Sale|Single Family Residence|Coming Soon
5
Beds
6
Total Baths
5
Full Baths
1
Partial Bath
8,515
SqFt
$255
/SqFt
2004
Built
Subdivision:
LOUDOUN VALLEY ESTATES
County:
LOUDOUN
Listing courtesy of Keller Williams Realty
43044 UNISON KNOLL CIRCLE43044 UNISON KNOLL CIRCLE43044 UNISON KNOLL CIRCLE43044 UNISON KNOLL CIRCLE
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Monthly Payment (Est.)

$9,923
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

Set on a lush .93-acre homesite, this extraordinary 8,500+ sq. ft. Toll Brothers Henley Federal residence is a masterclass in scale, elegance, and modern refinement. A stately brick façade and beveled glass entry open to a breathtaking two-story foyer, where twin sweeping staircases establish a sense of timeless grandeur. Every space has been thoughtfully curated—from the formal entertaining rooms with intricate millwork to the sunlit atrium retreat. At the heart of the home, the designer kitchen redefines luxury living, blending quartz surfaces, custom soft-close cabinetry, and a statement island built for gathering. The adjoining sunroom and expansive deck create a seamless indoor-outdoor experience. The soaring two-story great room, anchored by a dramatic brick fireplace, offers both comfort and architectural impact, while a private library provides a quiet space for work or reflection. Upstairs, the primary suite is a sanctuary unto itself—complete with a sitting room, an extraordinary 26-foot dressing room, and a spa-caliber bath crafted in porcelain and quartz. Each additional bedroom is a private suite, offering elevated comfort for family and guests alike. The lower-level transforms into a full-scale entertainment destination, with a rec room, brick, gas fireplace, home theater, bar, finished storage/gym space, 2nd office, and 5th bedroom, full bath and additional guest accommodations. Outdoors, the estate continues to impress with a fully fenced yard, mature fruit trees, professional landscaping, a 7-zone irrigation system and multiple spaces for gathering and relaxation. With a 3-car garage, EV charging, smart home features, and a premier location near top-tier shopping, dining, and commuter routes, this home delivers an exceptional lifestyle at every turn.

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Listing Snapshot
Price 
$2,175,000
Days On Site 
0 Days
Bedrooms 
5
Inside Area (SqFt) 
8,515 sqft
Total Baths 
6
Full Baths 
5
Partial Baths 
1
Lot Size 
0.93 Acres
Year Built 
2004
MLS® Number 
VALO2118914
Status 
Coming Soon
Property Tax 
$14,368
HOA/Condo/Coop Fees 
$196 monthly
Sq Ft Source 
Estimated
Friends & Family
Recent Activity
3 hours agoListing first seen on site
3 hours agoListing updated with changes from the MLS®
General Features
Acres 
0.93
Attached Garage 
Yes
Foundation 
Concrete Perimeter
Garage 
Yes
Garage Spaces 
3
Levels 
Three Or More
Parking 
Garage Door OpenerGarageDrivewayInside EntranceAttached
Parking Spaces 
5
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
Special Circumstances 
Standard
SqFt Above 
5498
SqFt Below 
3017
SqFt Total 
8558
Style 
Colonial
Utilities 
Underground Utilities
Water Source 
Public
Zoning 
R1
Interior Features
Appliances 
Gas Water Heater
Basement 
FinishedWalk-Out AccessInterior Entry
Cooling 
Central AirCeiling Fan(s)ZonedElectric
Fireplace 
Yes
Fireplace Features 
Gas
Fireplaces 
2
Flooring 
CarpetWood
Heating 
Natural GasZonedForced Air
Interior 
Ceiling Fan(s)Kitchen IslandRecessed LightingWalk-In Closet(s)Vaulted Ceiling(s)BarCrown MoldingSoaking Tub
Laundry Features 
Laundry RoomMain Level
Bedroom 5 
Conservatory Room 
Level - Main
Recreation Room 
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Exterior Features
Fencing 
Fenced
Lot Features 
Front YardLevelClearedBack Yard
Patio And Porch 
DeckPatio
Pool Features 
Community
Windows/Doors 
French Doors
Community Features
Association Amenities 
ClubhouseTennis Court(s)Jogging PathPlayground
Association Dues 
196
Community Features 
PoolSidewalks
HOA Fee Frequency 
Monthly
School District 
LOUDOUN COUNTY PUBLIC SCHOOLS
Schools
School District
LOUDOUN COUNTY PUBLIC SCHOOLS
Elementary School
LEGACY
Middle School
STONE HILL
High School
ROCK RIDGE
Listing courtesy of Keller Williams Realty



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Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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