



























7 Beds
11 Baths
12,200 SqFt
Active
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!
Property Details | ||
|---|---|---|
| Price | $10,750,000 | |
| Bedrooms | 7 | |
| Full Baths | 9 | |
| Half Baths | 2 | |
| Total Baths | 11 | |
| Property Style | Spanish | |
| Lot Size Area Units | Square Feet | |
| Acres | 0.39 | |
| Property Type | Residential | |
| Sub type | SingleFamilyResidence | |
| MLS Sub type | Detached | |
| Stories | 4 | |
| Features | Elevator,Sauna | |
| Year Built | 1925 | |
| Fireplaces | 1 | |
| Subdivision | OBSERVATORY CIRCLE | |
| Heating | Heat Pump(s) | |
| Foundation | Slab,Other | |
| Accessibility | Elevator | |
| Pool features | Indoor | |
| Garage spaces | 2 | |
Geographic Data | ||
| Directions | Between Observatory Circle and Edmunds Street | |
| County | WASHINGTON | |
| Latitude | 38.92446032 | |
| Longitude | -77.06800411 | |
Address Information | ||
| Address | 3400 MASSACHUSETTS AVE NW, WASHINGTON, DC 20007 | |
| Postal Code | 20007 | |
| City | WASHINGTON | |
| State | DC | |
| Country | United States | |
Listing Information | ||
| Listing Office | TTR Sotheby's International Realty | |
| Listing Office Email | jtaylor@ttrsir.com | |
| Listing Agent | Robert Hryniewicki | |
| Special listing conditions | Standard | |
| Ownership | Fee Simple | |
| Virtual Tour URL | https://www.relahq.com/mls/200145261 | |
School Information | ||
| District | DISTRICT OF COLUMBIA PUBLIC SCHOOLS | |
MLS Information | ||
| Days on market | 139 | |
| MLS Status | Active | |
| Listing Date | Mar 9, 2026 | |
| Listing Last Modified | Jul 25, 2026 | |
| Tax ID | 1937//0036 | |
| Tax Year | 2025 | |
| Tax Annual Amount | 60824 | |
| MLS # | DCDC2246924 | |
This information is believed to be accurate, but without any warranty.