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3400 Massachusetts Avenue NW

WASHINGTON, DC 20007
  • $10,750,000
  • STATUS: Active
  • ON SITE: 89 Days
  • ID#: DCDC2246924
UPDATED: 51 min ago
$10,750,000
  • 7
    BEDS
  • 0.39
    ACRES
  • 9
    BATHS
  • 2
    1/2 BATHS
  • 12,200
    SQFT
  • $881
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
1925
County:

School Ratings & Info

Description

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 owner’s 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!

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©2026 Bright MLS, All Rights Reserved. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Some properties which appear for sale may no longer be available because they are for instance, under contract, sold, or are no longer being offered for sale. Information is deemed reliable but is not guaranteed accurate by the MLS or Nomis Group International | eXp Realty. Some real estate firms do not participate in IDX and their listings do not appear on this website. Some properties listed with participating firms do not appear on this website at the request of the seller. Data last updated: 2026-06-07T20:54:25.743.
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3400 Massachusetts Avenue NW WASHINGTON, DC 20007

  • Price: $10,750,000
  • Status: Active
  • On Site: 89 Days
  • Updated: 51 min ago
  • ID#: DCDC2246924
7
Beds
9
Baths
2
½ Baths
0.39
Acres
12,200
SQFT
$881
$/SQFT
1925
Built
Neighborhood:
Observatory Circle
County:
Washington
School District:
District Of Columbia Public Schools
Property Description
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 owner’s 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!
Exterior Features

Architectural Style Spanish Construction Materials Brick Garage Spaces 2.00 Garage Type Garage Door Opener Garage YN Yes Other Structures Guest House Parking Types Detached GarageDriveway Patio And Porch Features Porch(es)Patio(s) Pool Yes - Personal Pool Features Indoor Soil Types Urban Land-Sassafras-Chillum Water Access YN No Water View YN No Waterfront YN No

Interior Features

Above Grade Fin SQFT 8900 Above Grade Unfinished Area 950 Basement FullFully Finished Basement YN Yes Below Grade Finished Area 3300 Below Grade Unfinished Area 750 Cooling Central A/C Fireplace YN Yes Fireplaces Total 1 Heating Heat Pump(s) Heating YN Yes Interior Features ElevatorSauna Levels 4 Main Level Bedrooms 1 Security Features Electric AlarmExterior Cameras Upper Level1 Bedrooms 6

Property Features

Accessibility Features Elevator Association YN No Central Air YN Yes Condo YN No Cooling Fuel Electric Elevators 1 Foundation Details SlabOther Heating Fuel Natural Gas Hot Water Natural Gas Navigable Water YN N New Construction YN No Original MLSNumber 804555927284 Ownership Interest Fee Simple Sale Type Standard Senior Community YN No Sewer Public Sewer Structure Design Type Detached Tax Annual Amount 60824.00 Tax Lot 36 Vacation Rental YN No Water Source Public Year Built Effective 2017 Zoning RES

Listing courtesy of TTR Sotheby's International Realty: .


©2026 Bright MLS, All Rights Reserved. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Some properties which appear for sale may no longer be available because they are for instance, under contract, sold, or are no longer being offered for sale. Information is deemed reliable but is not guaranteed accurate by the MLS or Nomis Group International | eXp Realty. Some real estate firms do not participate in IDX and their listings do not appear on this website. Some properties listed with participating firms do not appear on this website at the request of the seller. Data last updated: 2026-06-07T20:54:25.743.
 
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20130 Lakeview Center Plaza Ste. 400
Ashburn VA, 20147