8309 OLD SEVEN LOCKS ROAD

Custom-built 7,600+ sq. ft. estate on a private 1+ acre lot featuring a fully permitted 3-bedroom ADU, passive solar design, and parking for 20+ vehicles.

One-of-a-kind custom-designed residence, lovingly maintained by its original owners and enhanced with numerous premium upgrades throughout
Over 7,600 square feet of luxurious living space featuring an open-concept floor plan, a grand two-story foyer, and a spectacular two-story great room with soaring windows showcasing private wooded views
Situated on a secluded 1+ acre lot at the end of a quiet dead-end street, offering exceptional privacy and tranquility

Gourmet Kitchen & Main-Level Living

Gourmet chef's kitchen featuring granite countertops, a large center island, upgraded KitchenAid stainless steel appliances, and dual dishwashers (2025)
Main-level bedroom suite with a private full bath, ideal for guests, multigenerational living, or a home office

Elegant Upper-Level Retreat

Real hardwood flooring throughout the main and upper levels
Impressive upper level with 10-foot ceilings throughout
Expansive primary suite featuring a sitting area, custom walk-in closet, and a spa-inspired bath with an oversized walk-in shower and steam room
Three additional generously sized bedrooms, each enhanced with elegant tray ceilings
Convenient upper-level full-size washer and dryer

Versatile Walk-Out Lower Level

Fully finished walk-out lower level featuring a separately zoned and fully permitted ADU (Accessory Dwelling Unit)
Includes three bedrooms, two full baths, a full kitchen, family room and bonus roon, full-size washer and dryer, and two private entrances
Ideal for rental income, guest accommodations, multigenerational living, an au pair suite, or home business use

Efficiency & Major System Updates

Passive solar design for enhanced energy efficiency and reduced operating costs
Three-zone HVAC system, fully replaced in 2024
Interior and exterior freshly painted in 2026

Outdoor Living & Parking

Fully fenced rear yard with professional landscaping, extensive hardscaping, and custom exterior lighting
Oversized custom tandem 4-car garage
Exceptional off-street parking for 20+ vehicles

Prime Location

Convenient commuter location with easy access to Downtown Bethesda, Washington, DC, Northern Virginia, I-495, I-270, and I-95
Minutes from shopping, dining, parks, trails, and everyday conveniences