The Reservoir District Master Plan has been honored with a 2025 AIA Regional & Urban Design Award. This recognition celebrates the transformation of the historic McMillan Sand Filtration Site in Washington, DC, into a new vibrant mixed-use development that preserves the site’s unique industrial past.
The first phase celebrates the site’s historic layout and architectural character with a six-acre park and recreation center. Decades in the making, the Reservoir Park and Recreation Center are the result of a site master plan and design by Perkins Eastman DC and Nelson Byrd Woltz Landscape Architects. Quinn Evans served as the architect of record. Through a design-build effort led by Gilbane, Quinn Evans guided the documentation and delivery of the recreation center, which also recently achieved LEED Gold certification.
The surrounding Reservoir Park, designed by Rhodeside Harwell | RHI and Nelson Byrd Woltz Landscape Architects, provides six acres of public space and features a playground, splash pads, an amphitheater, and a restored historic fountain. Visitors can peer into preserved sand bins, filtration cells, and other structures from the site’s days as a water treatment facility.
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