3400 Massachusetts Ave Nw, Washington, DC 20007
Local realty services provided by:CENTURY 21 Charles Smith Agency, Inc.
Listed by: robert hryniewicki, christopher r leary
Office: ttr sotheby's international realty
MLS#:DCDC2246924
Source:BRIGHTMLS
Price summary
- Price:$10,750,000
- Price per sq. ft.:$881.15
About this home

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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Home facts
- Year built:1925
- Listing ID #:DCDC2246924
- Added:47 day(s) ago
- Updated:April 26, 2026 at 01:38 PM
Rooms and interior
- Bedrooms:7
- Total bathrooms:11
- Full bathrooms:9
- Half bathrooms:2
- Basement:Yes
- Basement Description:Full, Fully Finished
- Living area:12,200 sq. ft.
Heating and cooling
- Cooling:Central A/C
- Heating:Heat Pump(s), Natural Gas
Structure and exterior
- Year built:1925
- Building area:12,200 sq. ft.
- Lot area:0.39 Acres
- Architectural Style:Spanish
- Construction Materials:Brick
- Exterior Features:Patio(s), Porch(es)
- Foundation Description:Slab
- Levels:4 Story
Utilities
- Water:Public
- Sewer:Public Sewer
Finances and disclosures
- Price:$10,750,000
- Price per sq. ft.:$881.15
- Tax amount:$60,824 (2025)
Features and amenities
- Amenities:Electric Alarm, Elevator, Exterior Cameras, Sauna
- Pool features:Indoor
Parking
- Parking description:Detached Garage, Garage Door Opener
- Garage:Yes
- Garage spaces:2
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