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3400 Massachusetts Avenue NWWashington, DC 20007

For Sale

$10,750,000

Smart Buyer Rebate $107,500

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.

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. 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. Copyright BRIGHT, All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.