Listed by ruma sikka of Keller Williams Capital Properties
Custom-built 7,600+ sq. ft. estate on a private 1+ acre lot featuring a fully permitted Montgomery county licensed 3-bedroom Accessory Dwelling Unit (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. 2026 updated 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 Brand new 2026 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 and jacuzzi. Three additional generously sized bedrooms, each enhanced with elegant tray ceilings, fans and amazing views from all bedrooms. 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 2nd 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 units, 2026 new Roof, 2024 Hot water heater, 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

Listing Tools

Property Details of 8309 Old Seven Locks Road

Property Details

Interior Features

Utilities and Appliances

Community

Map Location

Copyright 2026 BRIGHT, All Rights Reserved.  Information Deemed Reliable But Not Guaranteed. The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which Jennifer Higgins participates, and is provided by BRIGHT through a licensing agreement. The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.Data last updated August 9, 2026. Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to be contacted by Jennifer Higgins via call, email, and text for real estate services. To opt out, you can reply 'stop' at any time or reply 'help' for assistance. You can also click the unsubscribe link in the emails. Message and data rates may apply. Message frequency may vary. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.