43112 Unison Knoll Circle
ASHBURN, VA 20148
- 6 beds
- 7 baths
- 8,120 sqft
- ~1 acre lot
- $283 per sqft
- 2004 build
Spectacular estate nestled on nearly one acre of private, fenced lot in the heart of prestigious Loudoun Valley Estates. Surrounded by lush greenery, this one-of-a-kind home offers over 8,000 square feet of meticulously finished space, featuring 6 bedrooms, 7 full bathrooms, and a 3-car garage. Upon arrival you are greeted by stunning curb appeal—brick paver circular walkway, elegant exterior lighting, and manicured landscaping. Step inside to soaring ceilings, a grand dual staircase, and rich hardwood floors flowing throughout the main level. Entertain in style in the formal living and dining rooms or retreat to the sun-soaked solarium—your own peaceful escape. The main level also includes a spacious bedroom and full bath, ideal for guests or multi-generational living. The Grand two-story family room is filled with natural light from picturesqe windows, while the chef-inspired kitchen boasts abundant cabinetry, a huge center island, double wall ovens, custom backsplash, and a generous breakfast room. A convenient mudroom off the garage connects to a large laundry room with a utility sink. From the kitchen, step outside onto the expansive deck, surrounded by trees and trellises, offering privacy and panoramic views—your own private sanctuary. Upstairs, the luxurious Primary suite features a private sitting room, tray ceiling and walk-in closet. The luxurious spa-style en-suite bath is a dream: dual private commodes, a central soaking tub, separate vanities, an oversized walk-in shower and second massive walk in closet. Three additional upstairs bedrooms each offer their own private full bathrooms, ensuring comfort for everyone. The walk-out lower level is a showstopper—over 2,600 finished square feet designed for entertaining and relaxation. Complete with a kitchenette, sitting room, two full baths, a bedroom, a theater room, and a spacious recreation area with dance floor, it also features a stunning Custom one-of-a-kind sunlit conservatory addition, perfect for enjoying the outdoors year-round. Outside, unwind in your private resort-style yard—lush, green, and tailored for tranquil living. Location is everything: just 1 mile to the Silver Line Metro, minutes from Brambleton Town Center, One Loudoun, Dulles Airport, and major commuter routes. Enjoy wonderful community amenities including pools, a fitness center, tennis courts, playgrounds, and scenic walking trails. Top-tier schools. Unmatched convenience. True luxury. This is Ashburn living at its finest.
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Last updated May 1, 2025
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MLS# VALO2095200 —
Upcoming Open Houses
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Saturday, 5/3
1pm-3pm -
Sunday, 5/4
1pm-3pm
The Building
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Year Built:2004
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Year Built Source:Assessor
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New Construction:No
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Construction Materials:Masonry, Brick
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Structure Type:Detached
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Architectural Style:Colonial
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Levels:3
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Accessibility Features:Other
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Foundation Details:Other
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Basement:Yes
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Basement Type:Full
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Total SqFt Source:Estimated
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Total Below Grade SqFt:2615
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Total Below Grade SqFt Source:Estimated
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Above Grade Finished Area Units:Square Feet
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Above Grade Finished SqFt:5505
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Above Grade Finished SqFt Source:Estimated
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Below Grade Finished Area Units:Square Feet
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Below Grade Unfinished Area Units:Square Feet
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Below Grade Finished SqFt Source:Estimated
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Below Grade Finished SqFt:2615
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Below Grade Unfinished SqFt Source:Assessor
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Tax Total Finished SqFt:7055
Interior
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Fireplace:Yes
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Fireplaces:1
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Living Area SqFt Source:Estimated
Room Dimensions
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Total SqFt:8120
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Living Area SqFt:8,120 Sqft
Financial & Terms
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Sale Type:Standard
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Possession:Settlement
Location
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Directions:From Airmont Hunt Dr, left onto Unision Knoll Cir
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Latitude:38.98630000
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Longitude:-77.50719000
The Property
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Property Type:Residential
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Lot Size Units:Square Feet
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Lot Size Acres:0.92
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Lot Size Source:Assessor
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Lot SqFt:40,075 Sqft
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Zoning:R1
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In City Limits:No
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Other Structures:Above Grade, Below Grade
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Waterview:No
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Waterfront:No
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Water Oriented:No
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Water Access:No
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Navigable Water:No
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Tidal Water:No
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Riparian Rights:No
Listing Agent
- Contact info:
- Agent phone:
- (703) 200-1135
- Office phone:
- (703) 665-6665
Taxes
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Tax ID Number:121171004000
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Tax Year:2025
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Tax Lot:128
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Tax Annual Amount:$15,043
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Tax Assessed Value:$1,854,330
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Year Assessed:2025
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County Tax:15043.00
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Total Taxes Payment Frequency:Annually
Beds
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Bedrooms:6
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Bedrooms Main Level:1
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Upper Level Bedrooms:4
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Upper Level 1 Bedrooms:4
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Lower Level Bedrooms:1
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Lower Level Bedrooms:1
Baths
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Total Baths:7
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Full Baths:7
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Main Level Baths:1.00
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Main Level Full Baths:1
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Upper Level Full Baths:4
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Lower Level Full Baths:2
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Upper Level Total Baths:4
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Upper Level Total Baths:4.00
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All Lower Levels Total Baths:2
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Lower Level Total Baths:2.00
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Upper Level Full Baths:4
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Lower Level Full Baths:2
The Listing
Heating & Cooling
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Cooling Type:Other
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Central Air:No
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Cooling Fuel:Other
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Heating:Yes
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Heating Type:Forced Air
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Heating Fuel:Natural Gas
Utilities
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Sewer/Septic:Public Sewer
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Hot Water:Natural Gas
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Water Source:Public
Schools
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School District Name:Loudoun County Public Schools
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School District Source:Listing Agent
The Community
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Subdivision Name:Loudoun Valley Estates
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Senior Community:No
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Pool:No Pool
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HOA:Yes
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Condo/Coop Association:No
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HOA Fee:$170
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HOA Fee Frequency:Monthly
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HOA Name:Loudoun Valley Estates Hoa
Parking
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Total Garage and Parking Spaces:3
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Garage:Yes
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Garage Features:Garage - Side Entry, Inside Access, Garage Door Opener
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Garage Spaces:3.00
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Type of Parking:Attached Garage
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# of Attached Garage Spaces:3
Extra Units
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Vacation Rental:No
Monthly cost estimate

Asking price
$2,300,000
Expense | Monthly cost |
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Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$12,315
|
Taxes | $1,253 |
Insurance | $632 |
Utilities | $255 See report |
Total | $14,455/mo.* |
*This is an estimate |
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Max Internet Speed
Provided by BroadbandNow®
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Sale history
Date | Event | Source | Price | % Change |
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5/1/25
May 1, 2025
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Listed / Active | BRIGHT | $2,300,000 | 151.9% (7.3% / YR) |
8/31/04
Aug 31, 2004
|
Sold | Public Record | $913,169 |