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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
2
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 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!
Listing Updated : 03-10-2026 at 5:33 PM EDT

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Home Details
3400 Massachusetts Ave, Washington, DC 20007
Status
Active
MLS #ID
DCDC2246924
Price
$10,750,000
Bedrooms
7
Bathrooms
11
Square Footage
12,200
Acres
0.39
Year
1925
Days on Site
2
Property Type
Residential
Property Sub Type
Price per Sq Ft
$881
Date Listed
Mar 9, 2026
Community Information for 3400 Massachusetts Ave, Washington, DC 20007
Address
3400 Massachusetts Ave
State
District of Columbia
Zip Code 20007
Schools
Utilities
Sewer
Public Sewer
Water Source
Public
Interior
Interior Features
Elevator and Sauna
Heating
Heat Pump(s)
Cooling
Central A/C
Fireplace
Yes
# of Fireplaces
1
Exterior
Roof
Garage Spaces
2
Foundation
Slab and Other
HOA
Has HOA
None
Additional Information
Styles
Spanish
Price per Sq Ft
$881
Listing Provided By

Robert Hryniewicki, 2028938881, [email protected], TTR Sotheby's International Realty

Source

Bright MLS, MLS#: DCDC2246924

Comments
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This beautiful 7 beds 11 baths home is located at 3400 Massachusetts Ave, Washington, DC 20007 and is listed for sale at $10,750,000.00. This home was built in 1925, contains 12200 square feet of living space, and sits on a 0.39 acre lot. This residential home is priced at $881.15 per square foot.

If you'd like to request a tour or more information on 3400 Massachusetts Ave, Washington, DC 20007, please call us at (202) 441-2348 so that we can assist you in your real estate search. To find homes like 3400 Massachusetts Ave, Washington, DC 20007, you can search homes for sale in Washington , or visit the neighborhood of Observatory Circle , or by 20007 . We are here to help when you're ready to contact us!

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Home Details
3400 Massachusetts Ave, Washington, DC 20007
Status
Active
MLS #ID
DCDC2246924
Price
$10,750,000
Bedrooms
7
Bathrooms
11
Square Footage
12,200
Acres
0.39
Year
1925
Days on Site
2
Property Type
Residential
Property Sub Type
Price per Sq Ft
$881
Date Listed
Mar 9, 2026
Community Information for 3400 Massachusetts Ave, Washington, DC 20007
Address
3400 Massachusetts Ave
State
District of Columbia
Zip Code 20007
Schools
Utilities
Sewer
Public Sewer
Water Source
Public
Interior
Interior Features
Elevator and Sauna
Heating
Heat Pump(s)
Cooling
Central A/C
Fireplace
Yes
# of Fireplaces
1
Exterior
Roof
Garage Spaces
2
Foundation
Slab and Other
HOA
Has HOA
None
Additional Information
Styles
Spanish
Price per Sq Ft
$881
Listing Provided By

Robert Hryniewicki, 2028938881, [email protected], TTR Sotheby's International Realty

Source

Bright MLS, MLS#: DCDC2246924

Comments

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MLS Logo© BRIGHT, All Rights Reserved. Information Deemed Reliable But Not Guaranteed. 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 it participates, and is provided by BRIGHT through a licensing agreement. 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.

Data last updated: February 5, 2026 6:11 AM UTC

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.

Some real estate firms do not participate in IDX and their listings do not appear on this website. Some properties listed with participating firms do not appear on this website at the request of the seller.
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.
Some properties that appear for sale on this website may no longer be available because they are under contract, have Been Sold, or are no longer being offered for sale.  Some real estate firms do not participate in IDX, and their listings do not appear on this website. Some properties listed with participating firms do not appear on this website at the seller's request.