Tregaron Estate, Historic Georgian estate in Cleveland Park, Washington D.C.
The 20-acre Tregaron Estate features a two-story brick mansion, greenhouse, dacha, gardener's cottage, and carriage house spread across woodland gardens and streams.
Architect Charles Adams Platt designed the mansion in 1912 for James Parmelee, and later Ambassador Joseph Davies renamed it Tregaron after purchasing it in 1940.
The estate grounds incorporate formal gardens designed by Ellen Biddle Shipman, reflecting early 20th-century American landscape architecture principles.
Visitors can access the estate through the entrance at 3100 Macomb Street, a short walk from Cleveland Park Metro station on the Red Line.
The property includes a Russian-style dacha added by Ambassador Davies and his wife Marjorie Merriweather Post during their residence from 1942 to 1958.
Location: Washington, D.C.
Architects: Charles A. Platt
Architectural style: Georgian architecture
GPS coordinates: 38.93167,-77.06111
Latest update: September 23, 2025 14:24
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