Realty Universal Washington

7 Beds

11 Baths

12,200 SqFt

Active

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!

Property Details
Price $10,750,000
Bedrooms 7
Full Baths 9
Half Baths 2
Total Baths 11
Property Style Spanish
Lot Size Area Units Square Feet
Acres 0.39
Property Type Residential
Sub type SingleFamilyResidence
MLS Sub type Detached
Stories 4
Features Elevator,Sauna
Year Built 1925
Fireplaces 1
Subdivision OBSERVATORY CIRCLE
Heating Heat Pump(s)
Foundation Slab,Other
Accessibility Elevator
Pool features Indoor
Garage spaces 2
Geographic Data
Directions Between Observatory Circle and Edmunds Street
County WASHINGTON
Latitude 38.92446032
Longitude -77.06800411
Address Information
Address 3400 MASSACHUSETTS AVE NW, WASHINGTON, DC 20007
Postal Code 20007
City WASHINGTON
State DC
Country United States
Listing Information
Listing Office TTR Sotheby's International Realty
Listing Office Email jtaylor@ttrsir.com
Listing Agent Robert Hryniewicki
Special listing conditions Standard
Ownership Fee Simple
Virtual Tour URL https://www.relahq.com/mls/200145261
School Information
District DISTRICT OF COLUMBIA PUBLIC SCHOOLS
MLS Information
Days on market 139
MLS Status Active
Listing Date Mar 9, 2026
Listing Last Modified Jul 25, 2026
Tax ID 1937//0036
Tax Year 2025
Tax Annual Amount 60824
MLS # DCDC2246924

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