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3400 Massachusetts Ave NW, Washington, DC 20007

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Listed by: Robert Hryniewicki - TTR Sotheby's International Realty

3400 Massachusetts Ave NW, Washington, DC 20007

$
Active
est.$10,750,000/month.
7 beds. 9 baths. 17,034 Sqft.

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3400 Massachusetts Ave NW, Washington, DC 20007

$10,750,000
Active
est.$10,750,000/month.
7 beds 10 baths 17,034 Sq.ft.
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Property details for 3400 Massachusetts Ave NW, Washington, DC 20007
Prominently sited in prestigious Observatory Circle, the historic Heurich-Parks House at 3400 Massachusetts Ave, 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 with designs 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. 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 9-foot ceilings and 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 31’ x 12’ 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!
Broker details: TTR Sotheby's International Realty

Listed by: Robert Hryniewicki
Listagent State License: SP98362041
Co-listing Broker: TTR Sotheby's International Realty
Co-listing Agent: Christopher Leary
Property Description

MLS Information

  • Listing: DCDC2246924
  • Listing Last Modified: 2026-03-10

Property Details

  • Standard Status: Active
  • MLS Status: ACTIVE
  • Property style: Spanish
  • Built in: 1925
  • Subdivision: OBSERVATORY CIRCLE

Geographic Data

  • County: WASHINGTON
  • MLS Area: OBSERVATORY CIRCLE
  • Directions: Between Observatory Circle and Edmunds Street
Features

Interior Features

  • Bedrooms: 7
  • Full baths: 10
  • Half baths: 2
  • Living area: 12200
  • Interior Features: Elevator, Sauna
  • Fireplaces: 1

Exterior Features

  • Foundation: Slab

Parking

  • Garage spaces: 2

Utilities

  • Sewer: Public Sewer
  • Water: Public
  • Heating: Natural Gas
Property Information

Tax Information

  • Tax Annual Amount: $60,824

Disclaimer

The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which participates, and is provided by BRIGHT through a licensing agreement. Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale. The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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Home Description

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