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!
Listed by Robert Hryniewicki
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License #SP98362041
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TTR Sotheby's International Realty
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2028938881
Last updated April 28, 2026
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Source: BrightMLS #DCDC2246924
Listing Facts
TypeSingle-family
NeighborhoodGlover Park
Bedrooms7
Bathrooms11
Days on Prevu53
Taxes$60,824/year
Size12,200 sqft
Price per sqft$881
Amenities
Parking
Location
Mortgage Calculator
Listing History
04/11/2026
Status changed to Active
$10,750,000
04/10/2026
Status changed to Removed from Feed
$10,750,000
03/09/2026
Listed by TTR Sotheby's International Realty
$10,750,000
Property Details for 3400 Massachusetts Avenue NW
Exterior
Construction
New Construction: No
Year Built: 1925
Architectural Style: Spanish
Construction Materials: Brick
Features
Other Structures: Above Grade, Below Grade
Patio And Porch Features: Porch(es), Patio(s)
Pool Features: Indoor
Waterfront: No
Measurements
Lot Size Acres: 0.39
Lot Size Source: Assessor
Lot Size Square Feet: 17,034
Lot Size Units: Square Feet
Financial
Taxes
Tax Annual Amount: $60,824.00
Tax Year: 2025
Interior
Features
Fireplace: Yes
Fireplaces Total: 1
Interior Features: Elevator, Sauna
Measurements
Living Area: 12,200
Living Area Source: Estimated
Rooms
Basement: Full, Fully Finished
Has Basement: Yes
Bathrooms Full: 9
Bathrooms Half: 2
Bathrooms Total Integer: 11
Bedrooms Total: 7
Main Level Bedrooms: 1
Other
Features
Accessibility Features: Elevator
General
Senior Community: No
Location
Subdivision Name: OBSERVATORY CIRCLE
Tax Lot: 36
Parking
Parking
Garage Spaces: 2
Garage: Yes
Utilities
Equipment
Cooling: Central A/C
Heating: Heat Pump(s)
Has Heating: Yes
Sewer: Public Sewer
Water Source: Public
Frequently Asked Questions
How many bedrooms and bathrooms does this single-family home have?
There are 7 bedrooms and 11 bathrooms in this single-family home at 3400 Massachusetts Avenue NW.
Does this single-family home have parking?
Yes, there are 2 parking spaces available for 3400 Massachusetts Avenue NW.
What are the annual taxes for 3400 Massachusetts Avenue NW?
Annual taxes for this single-family home are estimated at $60,824.
How does 3400 Massachusetts Avenue NW compare to other single-family homes in Glover Park?
This single-family home is listed 508% above the average price for single-family homes in Glover Park and has been on the market for 6 less days than the typical home in this area.
What is the square footage on this single-family home?
According to the MLS, this listing is 12,200 sqft.
3400 Massachusetts Avenue NW is a 7-bedroom, 11-bath single-family home for sale in WASHINGTON DC 20007. On Prevu for 53 days at $10,750,000. This property features 12,200 square feet of living space, located in Glover Park. The median listing price for single-family homes in this area is $399,900. Property amenities include parking. Browse more single-family home listings in Washington.
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