Bethesda, MD 20817 7405 Helmsdale Road

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Presented By: Long & Foster Real Estate, Inc.
  • MLS# MDMC2185718
  • 06/16/2025
  • Request Tour
  • Request Info
  • Beds • 4
  • Full/Half Baths • 4 / 1
  • SQFT • 4,180
  • Garage • 2

Home Details

Iconic NaCl House A Modern Architectural Masterpiece Discover the award-winning NaCl House, an architectural gem designed by internationally acclaimed architect David Jameson. Located at 7405 Helmsdale Road in Bethesda, MD, this striking residence was inspired by the natural isometric formation of mineral rock salt. Completed in 2011, the home features a bold, Tetris-like arrangement of white stucco volumes accented with flush-glazed panels, creating a seamless integration of interior and exterior spaces. For the discerning buyer seeking a truly exceptional residence, this award-winning home is a rare opportunity to own a landmark of modern design. Honored with a 2014 Residential Architect Magazine Design Award, the property stands as a testament to modernist ingenuity and visionary craftsmanship. Inside, the approximately 4,860-square-foot residence offers thoughtfully designed living spaces centered around a striking double-height living room. This open and fluid layout invites both grand entertaining and intimate moments. Crisp white walls and light ash floors create a minimalist elegance that perfectly complement the expansive floor-to-ceiling windows and sleek glass railings. These elements flood the interiors with abundant natural light, enhancing the homes bright and airy ambiance. The careful interplay of space and light reflects the architects intention to craft a home that feels both dynamic and serene. Originally built on the foundation of an earlier structure, the home was completely reimagined in 2011, blending modern elegance with structural innovation. Situated on a tranquil half-acre lot, in the sought-after neighborhood Bannockburn Estates in Bethesda, MD, the NaCl House combines architectural splendor with a serene natural setting. This exceptional property features luxurious finishes throughout, including a commanding mahogany front door and elevator, servicing all levels. Owning this iconic property is a rare opportunity to live in a true piece of architectural history - where luxury, design, and lifestyle seamlessly merge.
Presented By: Long & Foster Real Estate, Inc.

Interior Features for 7405 Helmsdale Road

Bedrooms

Bedrooms Count All Upper Levels4
Bedrooms Count Upper Level 14
Total Bedrooms4

Bathrooms

Bathrooms Half Main Level1
Bathrooms Full Upper Level 13
Bathrooms Full Lower Level 11
Bathrooms Full All Upper Levels3
Bathrooms Full All Lower Levels1
Bathrooms Count Upper Level 13.00
Bathrooms Count Lower Level 11.00
Bathrooms Count All Upper Levels3
Bathrooms Count All Lower Levels1
Half Baths1
Total Baths5

Other Interior Features

LivingAreaSourceAssessor
Below Grade Unfin Area UnitsSquare Feet
Below Grade Unfin SQFT1194
Below Grade Unfin SQFT SourceAssessor
Above Grade Finished Area3180
Above Grade Finished Area SourceAssessor
Above Grade Finished Area Unit TypeSquare Feet
BasementGarage Access, Windows, Partial
Basement (Y/N)Yes
Below Grade Finished Area1000
Below Grade Finished Area SourceAssessor
Below Grade Finished Area Unit TypeSquare Feet
Central Air Y/NYes
Fireplace FeaturesGas/Propane, Wood
Fireplace Y/NYes
FlooringHardwood
Heating FuelNatural Gas
Heating Y/NYes
Hot WaterNatural Gas
Interior AmenitiesElevator, Floor Plan - Open, Kitchen - Island, Primary Bath(s), Wood Floors, Ceiling Fan(s), Recessed Lighting, Walk-in Closet(s), Breakfast Area, Family Room Off Kitchen, Kitchen - Gourmet
Laundry TypeUpper Floor
Number of Elevators1
Total Fireplaces2

General for 7405 Helmsdale Road

Accessibility36 + wide Halls, Elevator
AppliancesDishwasher, Cooktop - Down Draft, Disposal, Oven - Double, Refrigerator, Stainless Steel Appliances, Washer, Dryer, Water Heater
Architectural StyleContemporary
Bathrooms Count Main Level1.00
CityBETHESDA
Condo/Coop Association Y/NNo
Construction MaterialsStucco
Cool FuelElectric
CoolingCentral A/C
CountyMONTGOMERY
DirectionsFrom DC, West on River Rd, Right on Nevis, immediate right onto service road, street becomes Helmsdale. Home is on the left.
Facing DirectionWest
Full Baths4
Garage Spaces2.00
Garage Y/NYes
HOANo
HeatingForced Air
Historic Y/NNo
Legal SubdivisionBANNOCKBURN ESTATES
Levels3
Lot Size Square Feet22492.00
Lot Size UnitsSquare Feet
ModificationTimestamp2025-06-17T16:48:50
New ConstructionNo
Other StructuresAbove Grade, Below Grade
OwnershipFee Simple
Patio/Porch FeaturesPatio(s)
PossessionSettlement, Negotiable
Price Per Sq Ft Total AG1193.4
Property ConditionExcellent
Property TypeResidential
School DistrictMONTGOMERY COUNTY PUBLIC SCHOOLS
Senior Community Y/NNo
SewerPublic Sewer
Standard StatusActive
StatusACTIVE
Structure TypeDetached
Subdivision NameBANNOCKBURN ESTATES
Tax Annual Amount15385.0
Tax Assessed Value1374200.0
Tax Lot6
Tax Year2024
Total SQFT5374
Vacation Rental Y/NNo
ViewGarden/Lawn
Virtual TourClick here
Water Access Y/NNo
Year Built2011
Year Built SourceEstimated
ZoningR200

Exterior for 7405 Helmsdale Road

# of Attached Garage Spaces2
Exterior AmenitiesExterior Lighting
Foundation DetailsOther
Garage FeaturesGarage - Front Entry, Oversized
Land Assessed Value776900.00
Land Use CodeR
Lot Size Acres0.52
Lot Size SourceAssessor
Navigable Water Y/NNo
PoolYes - Community
Total Parking Spaces2
Type of ParkingAttached Garage, Driveway
Water Oriented Y/NNo
Water SourcePublic
Water View Y/NNo
Waterfront Y/NNo

Additional Details

Price History

Schools

High School Walt Whitman High School
Middle School Thomas W. Pyle Middle School
Elementary School Bannockburn Elementary School

Rachel Shepherd

Price $3,795,000
MLS#MDMC2185718
List Date 06/16/2025
Property Type Single Family
Phone 703.929.4729
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