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- Description
- Property Details
- Location
- Facts & Features
- Getting Around
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$3,989,998
Monthly Est:$19,860
5 Beds
- 7 Baths
5 full baths + 2 half baths
10,030sqft
3708 Prosperity Ave, Fairfax, VA 22031
$3,989,998
$19,860/moEst:
Get Pre-Approved
Single Family Residence
Built in 2026
$-- HOA
1.15 acres lot
$398/sq.ft
Description
The wait is over for Orion—an exquisite, one-of-a-kind modern masterpiece. Nestled on a private, beautifully landscaped acre lot with mature trees in the prestigious Mantua community, this exceptional estate offers a peaceful retreat just minutes from the Capital Beltway, I-66, Tyson Corner, the Mosaic District, and Washington, D.C.
Designed by a renowned modern architect and crafted by award-winning ACG Custom Homes, Orion seamlessly blends refined, effortless living with modern sophistication. Guests are welcomed by a massive, 9-foot wood pivot door that opens into a dramatic foyer with soaring ceilings. Throughout the home, expansive Marvin windows and doors flood the spaces with natural light, blurring the line between the striking interior and the nature outside.
The main level is thoughtfully engineered for both intimate daily living and grand-scale entertaining. The spectacular Great Room anchors the home, featuring 21-foot ceilings, custom white oak cabinetry, and a gas fireplace finished with hand-applied plaster and custom lighting accents. The culinary spaces are nothing short of breathtaking. The main kitchen boasts modern lines, custom two-tone white oak and painted cabinets, double islands, and premium Thermador appliances. Behind the scenes, a fully equipped spice kitchen features Bosch appliances, ample storage, and seamless functionality.
Indoor-outdoor living is elevated by a heated loggia with its own fireplace, leading out to a private backyard oasis. Here, you will find a state-of-the-art heated saltwater swimming pool—complete with a full depth swimming lane, sun shelf, natural stone decking, and an automated retractable cover—with plenty of remaining space to add the sports court of your dreams.
The primary suite serves as an opulent sanctuary, defined by towering, soaring ceilings, an elegant electric fireplace, a private coffee bar, and direct access to the loggia. Organization is effortless with two fully customized walk-in closets complete with a dedicated washer and dryer. The en-suite bath evokes a five-star spa experience, featuring striking Taj Mahal stone, Italian porcelain slabs, a curbless walk-in shower, gunmetal signature hardware, designer accent lighting, and abundant custom storage.
The lower level elevates luxury living to new heights, presenting an unmatched retreat entirely dedicated to health, wellness, and grand-scale entertainment. Fitness enthusiasts will appreciate the high-end gym, enclosed by automated sliding switchable glass doors, complete with an integrated water filtration system and a dedicated spa bath featuring a state-of-the-art cold plunge and sauna.
For recreation and leisure, the sprawling family room offers a central fireplace, built-in cabinetry, a cozy reading nook, and expansive space for a pool or ping-pong table. Movie nights and swing practice come alive in the theater and golf simulator room, outfitted with acoustic paneling, layered accent lighting, and a cutting-edge projector. To top it all off, an automated hidden entry reveals a magnificent entertainer’s lounge. This ultimate private club boasts a massive wet bar with double seating, a wine room, and an 130” + media screen perfect for game day.
From its hydronic radiant-heated floors, integrated custom speakers, and state-of-the-art smart technology to its sophisticated architectural design, and conditioned garage this estate delivers an unparalleled living experience. Melding effortless main-level luxury with a world-class lower-level wellness and entertainment retreat, this residence offers a rare combination of comfort, sophistication, and lifestyle amenities.
Come and experience ORION!
- Houzeo last checked: 7 hours ago
- Listing updated: September 30, 2026 at 2:04 pm
- Listing Provided by: Carmen Bere (703) 508-1470 | Samson Properties (703) 378-8810
- Source: Bright MLS-NJ | MLS#: VAFX2340158

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
-
County
City
Neighborhood
--
Year Built
2026
HOA Fees
-
Finished Area
10,030 sqft
Lot Size
1.15 acres lot
Basement Area
- sqft
MLS Name
Bright MLS
MLS Number
VAFX2340158
MLS Status
ACTIVE-BRIGHT
Days on Market
1

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 5
Bathrooms: 7
Interior
Exterior Features
Exterior Lighting, Extensive Hardscape, Fire Escape, Flood Lights, Gutter System, Lawn Sprinkler
Interior Features
2nd Kitchen, Air Filter System, Bar, Bathroom Soaking Tub, Bathroom Tub Shower, Breakfast Area, Built Ins, Butlers Pantry, Combination Kitchen/dining, Combination Kitchen/living, Dining Area, Efficiency, Entry Level Bedroom, Exposed Beams, Family Room Off Kitchen, Floor Plan Open, Formal/separate Dining Room, Kitchen Eat In, Kitchen Gourmet, Kitchen Island, Pantry, Recessed Lighting, Sauna, Walk In Closet(s), Wine Storage, Wood Floors
Heating
Forced Air, Other, Programmable Thermostat
Flooring
Engineered Wood
Appliances
Built In Microwave, Commercial Range, Dishwasher, Dual Flush Toilets
Sewer
Public Sewer
Cooling
Programmable Thermostat, Zoned
Construction
Year Built
Year Built: 2026
Home type
Single Family Residence
Foundation Details
Slab, Concrete Perimeter
Architectural Style
Contemporary, Mid Century Modern
Property Condition
Excellent
Roof
Architectural Shingle
Construction Materials
Stone, Stucco
Utilities & Energy
Pool Features
Heated, In Ground, Lap/exercise, Saltwater
Parking Features
Asphalt Driveway
Fireplace Features
Electric, Fireplace Glass Doors, Gas/propane, Screen, Stone
Electric
200+ Amp Service
Basement
Connecting Stairway, Daylight, Full, Fully Finished, Heated, Improved, Interior Access, Outside Entrance
Water Source
Well
Other Features
Subdivision Name
Mantua
Price History
| Date | Event | Price |
|---|---|---|
09/30/2026 Source: | Listed for Sale | $3,989,998 $398/sqft |
09/18/2026 Source: | Coming Soon | $3,989,998 $398/sqft |
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