11232 OLD HOPKINS RD, Clarksville, MD 21029

• 3 beds |
• 2 baths |
• 2,176 sqft

Property Description

A rare opportunity to own The Gaddy House, a thoughtfully designed Clarksville residence recognized for its forward-thinking sustainable design and exceptional energy performance. Built as a high-performance custom home, this property was intentionally engineered to achieve net-zero living, combining advanced building science with comfort, durability, and modern livability. Designed to meet LEED Platinum and Passive House standards, the home offers outstanding energy efficiency, superior indoor air quality, and year-round comfort. A carefully constructed building envelope, high-performance windows, and precision mechanical systems work together to reduce energy consumption while creating a quiet living environment filled with natural light. The home has been featured in multiple articles and case studies for its innovative approach to sustainable residential design. The layout balances open, functional spaces with a strong connection to the surrounding landscape, reinforcing the home’s focus on intentional living. Set along Old Hopkins Road in sought-after Clarksville, this property delivers a unique blend of innovation, environmental responsibility, and everyday comfort—ideal for buyers seeking a home that stands apart for both its design and performance. Wheelchair accessible through the garage.

Listing Status:

Pending

Date Added:

January 30, 2026

Data Last Updated:

February 4, 2026 at 3:21PM

Listing Office:

Keller Williams Realty Centre : 4103120000

Listing Agent:

Gary R Ahrens : 4109786541

MLS ID:

MDHW2063360

Interior

• General: Ceiling Fan(s)Combination Dining/LivingCombination Kitchen/DiningCombination Kitchen/LivingFloor Plan - OpenKitchen - GourmetKitchen - IslandPantryPrimary Bath(s)Recessed LightingUpgraded CountertopsWalk-in Closet(s)
• Rooms: Living RoomDining RoomPrimary BedroomBedroom 2Bedroom 3KitchenLaundryBathroom 2Primary Bathroom
• Appliances: DishwasherEnergy Efficient AppliancesMicrowaveOven/Range - ElectricRefrigeratorStainless Steel AppliancesWasherDryer
• Laundry: Main Floor
• A/C: Central A/CCeiling Fan(s)Ductless/Mini-Split
• Heating: Heat Pump(s)Electric
• Disability Feature: None
• Eco/Green Feature: AppliancesConstructionHome energy managementHvacLightingVentilationPV Solar Array(s) OwnedHeat recovery ventilator to exhaust cooking gases while supplying make up air. Energy recovery ventilator to freshen airA ground loop to condition outside air feed to the ERV. All LEED lighting. Air tight design. A 6kW PV array to offset electricity from grid. Reflective driveway and roof to reduce heat island effect. The most efficient refrigerator produced (SunFrost) A non -venting Whirlpool Heat Pump Clothes Dryer. Induction cooktop. Waterless urinals. 08 gallon per flush toilets.Conserving materials methodsEfficient hot water distributionGreen infrastructureLow flow fixturesWater smart landscaping

Exterior

• General: Gutter SystemOutbuilding(s)Above GradeBelow Grade
• Style: Contemporary
• Other Structures: Patio
• Parking: Concrete DrivewayCircular DrivewayElectricVehicleChargingStations

Construction

• Roofing: Metal
• Windows: Triple pane
• General: Advanced FramingBattsInsulationBlownInInsulationFrameRigid InsulationSprayFoamInsulationStick BuiltBlock1Slab

Location

• Originating MLS: BRIGHT_MAIN
• School District: HOWARD COUNTY PUBLIC SCHOOLS
• County: HOWARD-MD

Lot

• Zoning: RRDEO1405365376
• View: Garden/Lawn

Utilities

• Utilities: 200 amp service
• Water: CisternPublic
• Sewer: Septic Exists

Financial

• Source: BRIGHT_MAIN