Tregaron, Historic garden estate in Cleveland Park, Washington D.C., United States

Tregaron is a 20-acre estate in Cleveland Park with meadows, woodland gardens, streams, and walking trails. The property includes a Georgian-style mansion, carriage house, greenhouse, and a Russian dacha connected by historic stone walls along the main drive.

The property was built in 1912 by architect Charles Adams Platt as a prominent example of early 20th-century landscape design. In the 1940s it became home to Ambassador Joseph Davies and heiress Marjorie Merriweather Post, who added new structures and expanded the gardens.

The grounds blend English and Russian garden design traditions, visible in the arrangement of plantings and pathways throughout the property. The mix reflects the tastes of its former owners and creates different moods as you move from one section to another.

The grounds are open daily from dawn to dusk and can be accessed through two different entrances depending on where you are arriving from. Both gates are on the northwest side of the city, making it easy to find a convenient entry point for your visit.

The property features a rare Russian dacha among Washington estates, reflecting the international design interests of its residents. This unusual structure stands out as a reminder of the owners' worldly tastes and connections.