3400 Massachusetts Ave Nw, WASHINGTON, DC

$10,750,000

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7

Beds

10

Baths

12,200

Square feet

0.39

Acres

About 3400 Massachusetts Ave Nw

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!

Features of 3400 Massachusetts Ave Nw

MLS® # DCDC2246924
Price $10,750,000
Bedrooms 7
Bathrooms 10.00
Full Baths 9
Half Baths 2
Square Footage 12,200
Acres 0.39
Year Built 1925
Type Residential
Sub-Type Detached
Style Spanish
Status Active

Community Information

Address 3400 Massachusetts Ave Nw
Subdivision OBSERVATORY CIRCLE
City WASHINGTON
County WASHINGTON-DC
State DC
Zip Code 20007

Amenities

Amenities Elevator, Sauna
# of Garages 2
Garages Garage Door Opener
Is Waterfront No
Has Pool Yes
Pool Indoor

Interior

Heating Heat Pump(s)
Cooling Central A/C
Has Basement Yes
Basement Full, Fully Finished
Fireplace Yes
# of Fireplaces 1
Stories 4

Exterior

Exterior Brick
Exterior Features Porch(es),Patio(s),Indoor
Construction Brick
Foundation Slab, Other

School Information

District DISTRICT OF COLUMBIA PUBLIC SCHOOLS

Additional Information

Date Listed March 9th, 2026
Days on Market 128
Zoning RES
Foreclosure No
Short Sale No
RE / Bank Owned No

Listing Details

OfficeTTR Sotheby's International Realty

Listing Map

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