10405 Boswell Lane
POTOMAC, MD 20854
- 6 beds
- 9 baths
- 13,618 sqft
- ~1 acre lot
- $242 per sqft
- 2018 build
Designed by a seasoned architect home owner as a personal legacy estate, this 6-bedroom, 7 full + 2 half bath residential tour de force spans approximately 13,000 sq ft of masterfully curated interiors, nestled within one of Potomac’s most prestigious enclaves. Inspired by the beauty of French châteaux and elevated with sleek, modern innovations, this home blends old-world elegance with cutting-edge materials sourced from across the globe. Step through a dramatic Acasa security steel door entry into a vast tiled foyer and soaring 2-story central Living Room, crowned by an imported three-tiered artisan glass chandelier. From there, experience airy, sun-drenched interiors defined by walls of glass, steel beam construction, and striking floating glass staircases . From solid-core Canadian doors to premium bamboo flooring, handcrafted Turkish tiles, and porcelain accents, every finish tells a story. The result is a seamless flow of light and energy throughout the home—perfectly complementing the estate's bold, contemporary vision. Designed for effortless grandeur, the formal Dining Room offers the perfect backdrop for elegant entertaining on any scale. The open-concept Kitchen, featuring custom cabinetry, double sinks, two large pantries, center island, and sleek finishes, flows into a spacious Family Room with a gas fireplace. Two main-level Bedrooms include a private Guest Suite with its own entrance, living space, full bath, driveway access, and separate 2-car Garage—ideal for multi-generational living or long-term guests. A private, coded-entry Office, additional Powder Room, and panoramic views of lush grounds complete the level. A showstopping architectural centerpiece, the upper level features a glass-enclosed Gallery anchored by the majestic three-tiered glass chandelier, overlooking the open Living Room below. This unique construction frames the upstairs in light and openness. The Primary Suite is a sanctuary of refined tranquility, featuring spa-caliber finishes, expansive dressing areas, and serene views. Three additional spacious Bedrooms each enjoy ensuite baths and generous storage. A versatile Flex Room— perfect for a wellness space, prayer room or additional office, a stunning Family Lounge framed by walls of windows with panoramic views, and a fully appointed Laundry round out this floor. The spectacular above-ground lower level is wrapped in a dramatic wall of 3-story high windows that flood the interior with natural light and showcase breathtaking views of the rear grounds. A sculptural glass staircase connects the lower level to the main floor above while serving as a visual statement piece. This is a true entertainer’s haven, complete with a quartz and Melamine designer Bar, three beverage centers, dishwasher, sink, mounted TV, and custom built-ins. The adjacent private Theater boasts tiered recliners, projection screen, and immersive surround sound. A bonus room with Full Bath access and large storage spaces adds flexibility for guests or work-from-home needs. Outside, enjoy the ultimate in al fresco living. A steel-roof covered patio and full outdoor kitchen with granite countertops, dual refrigerators, and professional hardscaping are framed by lush, landscaped grounds—ideal for intimate gatherings or large-scale celebrations. Additional features include a 5-zone HVAC system, two commercial-grade 100+ gal water heaters, three fireplaces, and rare access to public water and sewer. Infrastructure for a future elevator is already in place. Garage parking for three completes this extraordinary offering. Every inch of this home has been meticulously crafted to deliver the pinnacle of elegance, privacy, and innovation. This is not just a residence—it is a bold expression of luxury living at its finest. Nothing compares!
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Last updated May 9, 2025
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MLS# MDMC2178096 —
The Building
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Year Built:2018
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Year Built Source:Assessor
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New Construction:No
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Construction Materials:Stucco
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Structure Type:Detached
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Architectural Style:Contemporary
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Levels:3
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Door Features:French
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Window Features:Energy Efficient, Sliding
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Accessibility Features:None
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Foundation Details:Concrete Perimeter
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Basement:Yes
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Basement Type:Daylight, Full, Fully Finished, Improved, Outside Entrance, Walkout Level, Windows
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Total SqFt Source:Assessor
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Total Below Grade SqFt:4576
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Total Below Grade SqFt Source:Assessor
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Above Grade Finished Area Units:Square Feet
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Above Grade Finished SqFt:10018
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Above Grade Finished SqFt Source:Assessor
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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:Assessor
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Below Grade Finished SqFt:3600
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Below Grade Unfinished SqFt:976
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Below Grade Unfinished SqFt Source:Assessor
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Tax Total Finished SqFt:13618
Interior
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Interior Features:Additional Stairway, Bar, Bathroom - Walk-In Shower, Built-Ins, Carpet, Ceiling Fan(s), Crown Moldings, Double/Dual Staircase, Family Room Off Kitchen, Floor Plan - Open, Formal/Separate Dining Room, Kitchen - Gourmet, Kitchen - Island, Primary Bath(s), Recessed Lighting, Sound System, Spiral Staircase, Water Treat System, Wood Floors, Other
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Room List:Living Room, Dining Room, Primary Bedroom, Sitting Room, Bedroom 2, Bedroom 4, Bedroom 5, Kitchen, Family Room, Foyer, Breakfast Room, Bedroom 1, 2nd Stry Fam Rm, Laundry, Mud Room, Other, Office, Recreation Room, Bedroom 6, Bonus Room, Primary Bathroom, Full Bath, Half Bath
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Flooring Type:Bamboo, Partially Carpeted, Other
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Fireplace:No
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Living Area SqFt Source:Assessor
Room Dimensions
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Total SqFt:14594
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Living Area SqFt:13,618 Sqft
Financial & Terms
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Sale Type:Standard
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Acceptable Financing:Conventional, Cash, Other
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Possession:Settlement
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Lease Considered:No
Location
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Directions:From Potomac Village - stay on River Rd, Right onto Piney Meetinghouse Rd, Right onto Boswell Ln; or From Falls Rd towards Potomac Village , turn right onto Glen Rd, through the bridge to Left on Glen Mill Rd, Left on Glen Mill to Boswell Lane.
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Latitude:39.06932000
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Longitude:-77.21432000
The Property
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Property Type:Residential
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Property Condition:Excellent
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Lot Size Units:Square Feet
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Lot Size Acres:1.00
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Lot Size Source:Assessor
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Lot Features:Landscaping, Premium, Rear Yard
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Lot SqFt:43,560 Sqft
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Zoning:RE1
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In City Limits:No
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Outdoor Living Structures:Balcony, Patio(s)
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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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Land Use Code:R
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Ground Rent Exists:No
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Riparian Rights:No
Listing Agent
- Contact info:
- Agent phone:
- (240) 888-5076
- Office phone:
- (301) 469-4700
Taxes
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Tax ID Number:160400047597
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Tax Year:2024
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Tax Annual Amount:$26,394
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Tax Assessed Value:$2,255,300
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Year Assessed:2025
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County Tax:25674.00
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Total Taxes Payment Frequency:Annually
Beds
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Bedrooms:6
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Bedrooms Main Level:2
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Upper Level Bedrooms:4
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Upper Level 1 Bedrooms:4
Baths
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Total Baths:9
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Full Baths:7
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Half Baths:2
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Main Level Baths:4.00
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Main Level Full Baths:2
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Main Level Half Baths:2
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Upper Level Full Baths:4
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Lower Level Full Baths:1
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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:1
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Lower Level Total Baths:1.00
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Upper Level Full Baths:4
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Lower Level Full Baths:1
Heating & Cooling
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Cooling Type:Central A/C, Ceiling Fan(s), Zoned
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Central Air:Yes
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Cooling Fuel:Electric
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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 Septic
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Hot Water:Natural Gas
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Water Source:Public
Appliances
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Appliances:Built-In Microwave, Dishwasher, Microwave, Oven/Range - Gas, Refrigerator, Stainless Steel Appliances, Washer - Front Loading, Dryer - Front Loading, Water Heater
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Laundry Type:Upper Floor
Schools
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Elementary School:Wayside
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Middle School:Herbert Hoover
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High School:WINSTON CHURCHILL
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School District Name:Montgomery County Public Schools
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School District Source:3rd Party
The Community
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Subdivision Name:Pt Rockville Out Res 3
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Senior Community:No
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Exterior Features:BBQ Grill, Exterior Lighting, Flood Lights
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Pool:No Pool
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HOA:No
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Condo/Coop Association:No
Parking
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Total Garage and Parking Spaces:9
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Garage:Yes
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Garage Features:Garage - Side Entry, Garage - Front Entry, Garage Door Opener, Oversized
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Garage Spaces:3.00
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Type of Parking:Attached Garage, Driveway
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Parking Features:Circular Driveway
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# of Attached Garage Spaces:3
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Driveway - # of Spaces:6
Extra Units
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Vacation Rental:No
Monthly cost estimate

Asking price
$3,300,000
Expense | Monthly cost |
---|---|
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. |
$17,670
|
Taxes | $2,199 |
Insurance | $907 |
Utilities | $353 See report |
Total | $21,129/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
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.
Sale history
Date | Event | Source | Price | % Change |
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5/7/25
May 7, 2025
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Listed / Active | BRIGHT | $3,300,000 |