Washington, DC 20007 3400 Massachusetts Avenue NW

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Presented By: TTR Sotheby's International Realty
  • MLS# DCDC2246924
  • 03/09/2026
  • Request Tour
  • Request Info
  • Beds • 7
  • Full/Half Baths • 9 / 2
  • SQFT • 12,200
  • Garage • 2

Home Details

Prominently sited in prestigious Observatory Circle, the historic Heurich-Parks House at 3400 Massachusetts Avenue, NW presents a rare opportunity to own a fully reconstructed Washington estate. Originally built in 1925 by architect Albert S.J. Atkinson and once home to Christian Heurich Jr., a philanthropic businessman, as well as Marshall Parks, known as the "Father of Pediatric Ophthalmology". This distinguished Spanish Mission-style residence was masterfully reconstructed and expanded in 2017 by renowned BarnesVanze Architects, seamlessly blending historic provenance with modern luxury. Set on a beautifully landscaped and level 0.39-acre lot with irrigation, the property is introduced by a grand circular driveway and features a detached 2-car garage with guest house studio above and additional parking pad. Encompassing approximately 13,900 square feet, the residence offers 7 bedrooms, 9 full baths, 2 half baths, and an elevator. The main level is defined by elegant entertaining spaces, complemented by a stunning open kitchen with marble countertops, herringbone floors, and a sunlit breakfast room. Designed for both grand-scale living and everyday comfort, the home includes an extraordinary indoor swimming pool with pool bath, bar, and Desert Air dehumidification system. A convenient main level bedroom suite also completes this level. The luxurious owners suite features a spa-inspired bath and dual walk-in closets. There are four other bedroom suites on this level. The expansive lower level offers a recreation room, exercise room, wine storage, laundry, full bath with sauna, and multiple storage rooms. A truly exceptional offering combining architectural significance, modern amenities, and premier location adjacent to the Naval Observatory and Vice President's Mansion!
Presented By: TTR Sotheby's International Realty

Interior Features for 3400 Massachusetts Avenue NW

Bedrooms

Bedrooms Count All Upper Levels6
Bedrooms Count Upper Level 16
Main Level Bedrooms1
Total Bedrooms7

Bathrooms

Bathrooms Half Main Level2
Bathrooms Full Upper Level 16
Bathrooms Full Lower Level 11
Bathrooms Full All Upper Levels6
Bathrooms Full All Lower Levels1
Bathrooms Count Upper Level 16.00
Bathrooms Count Lower Level 11.00
Bathrooms Count All Upper Levels6
Bathrooms Count All Lower Levels1
Half Baths2
Total Baths11

Other Interior Features

LivingAreaSourceEstimated
Below Grade Unfin Area UnitsSquare Feet
Below Grade Unfin SQFT750
Below Grade Unfin SQFT SourceEstimated
Above Grade Unfin Area UnitsSquare Feet
Above Grade Unfin SQFT SourceEstimated
Above Grade Finished Area8900
Above Grade Finished Area SourceEstimated
Above Grade Finished Area Unit TypeSquare Feet
BasementFull, Fully Finished
Basement (Y/N)Yes
Below Grade Finished Area3300
Below Grade Finished Area SourceEstimated
Below Grade Finished Area Unit TypeSquare Feet
Central Air Y/NYes
Fireplace Y/NYes
Heating FuelNatural Gas
Heating Y/NYes
Hot WaterNatural Gas
Interior AmenitiesElevator, Sauna
Number of Elevators1
Total Fireplaces1

General for 3400 Massachusetts Avenue NW

Above Grade Unfin SQFT950
AccessibilityElevator
Architectural StyleSpanish
Bathrooms Count Main Level4.00
Bathrooms Full Main Level2
CityWASHINGTON
Condo/Coop Association fee Y/NNo
Construction MaterialsBrick
Cool FuelElectric
CoolingCentral A/C
CountyWASHINGTON
DirectionsBetween Observatory Circle and Edmunds Street
Full Baths9
Garage Spaces2.00
Garage Y/NYes
HOANo
HeatingHeat Pump(s)
Legal SubdivisionObservatory Circle
Levels4
Living Area12200
Lot Size Square Feet17034.00
Lot Size UnitsSquare Feet
New ConstructionNo
Other StructuresAbove Grade, Below Grade
OwnershipFee Simple
Patio/Porch FeaturesPorch(es), Patio(s)
Pool FeaturesIndoor
PossessionSettlement
Price Per Sq Ft Total AG1207.87
Property TypeResidential
School DistrictDISTRICT OF COLUMBIA PUBLIC SCHOOLS
Security FeaturesElectric Alarm, Exterior Cameras
Senior Community Y/NNo
SewerPublic Sewer
Standard StatusActive
StatusACTIVE
Structure TypeDetached
Subdivision NameOBSERVATORY CIRCLE
Tax Annual Amount60824.0
Tax Assessed Value6543050.0
Tax Lot36
Tax Year2025
Total SQFT13900
Vacation Rental Y/NNo
Virtual TourClick here
Water Access Y/NNo
Year Built1925
Year Built SourceEstimated
ZoningRES

Exterior for 3400 Massachusetts Avenue NW

# of Detached Garage Spaces2
Foundation DetailsSlab, Other
Garage FeaturesGarage Door Opener
Land Assessed Value1924330.00
Land Use Code
Lot Size Acres0.39
Lot Size SourceAssessor
Navigable Water Y/NNo
PoolYes - Personal
Soil TypesUrban Land-Sassafras-Chillum
Total Parking Spaces12
Type of ParkingDetached Garage, Driveway
Water Oriented Y/NNo
Water SourcePublic
Water View Y/NNo
Waterfront Y/NNo

Additional Details

Price History

Christine Fetzer

Agent
Price $10,750,000
MLS#DCDC2246924
List Date 03/09/2026
Property Type Single Family
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