Back to Search
3400 Massachusetts Ave, Washington, DC 20007
3400 Massachusetts Ave, Washington, DC 20007 3D Tour
3400 Massachusetts Ave, Washington, DC 20007 Explore 3D Tour
3400 Massachusetts Ave, Washington, DC 20007
3400 Massachusetts Ave, Washington, DC 20007
3400 Massachusetts Ave, Washington, DC 20007
3400 Massachusetts Ave, Washington, DC 20007

3400 Massachusetts Ave Washington, DC 20007

$10,750,000

ACTIVE
Beds
7
Baths
11
Sqft
12,200
Acres
0.39
Year
1925
Days on Site
44
Property Type
Residential
Sub Type
Per Square Foot
$881
Date Listed
Mar 9, 2026

Description of 3400 Massachusetts Ave, Washington, DC 20007

Listing details for 3400 Massachusetts Ave, Washington, DC 20007 : 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!
Listing Updated : 04-17-2026 at 5:42 AM EDT
Listing Provided By : Robert Hryniewicki, 2028938881, [email protected], TTR Sotheby's International Realty
Source :

Bright MLS, MLS#: DCDC2246924

Manage Property Details Page

Home Worth Check

Interested in 3400 Massachusetts Ave, Washington DC, 20007?

By proceeding, you consent to receive calls, texts and voicemails at the number you provided (may be recorded and may be autodialed and use prerecorded and artificial voices), and email, from Dell Residential Group about your inquiry and other home-related matters. Msg/data rates may apply. This consent applies even if you are on a do not call list and is not a condition of any purchase.

Location of 3400 Massachusetts Ave, Washington, DC 20007

Google Map
Mortgage Calculator
Listing Price
Down Payment
Interest Rate

Schools Near 3400 Massachusetts Ave, Washington, DC 20007

Homes Similar to 3400 Massachusetts Ave, Washington, DC 20007

HomeWashingtonObservatory Circle
What’s Your Home or Condo Worth Today?
Find out what your home or condo is worth in today’s market with a FREE Comparative Market Analysis from a top local Realtor.