1201 Connecticut Ave NW
Dupont Circle, Washington D.C.
1201 Connecticut Ave NW
This residential conversion of the historic Longfellow Building in Dupont Circle transforms a 1941 modernist structure originally designed by Swiss-born American architect William Lescaze. The project reinterprets the International Style through a contemporary lens, honoring Lescaze’s legacy while introducing new vitality to a landmark DC neighborhood.
The adaptive reuse development features the conversion of a 190,385-square-foot, Class B office into a 161 unit residential property, with a rooftop pool deck, resident amenities, and 12,000 square feet of ground-floor retail. Construction begins in Summer 2025.
Developer: Duball, LLC
Architect: Maurice Walters Architect, Inc.
Interior Designer: Akseizer Design Group
Structural: SK&A
Landscape Architect: Studio39
Civil Engineer: VIKA Capitol, LLC
MEP: Henry Adams, LLC