Driven by the contrast between, and union of, two halves—one light and delicate (public/events) and the other strong and solid (support)—the architectural expression of the Occoquan Center is articulated through the use of different structural systems and materials: delicate steel and glass on the west side allowing for expansive views of the river, and heavy timber and wood cladding on the east. Similar patterning between the halves ties them together to create a cohesive structure and references the historic structures on site.

With a focus on story-based design, the concept for the Occoquan Center reflects its unique physical setting and history, intertwining the design of the facility with the park’s existing palette.

The lower level primarily serves park-related functions and contains the riverfront ‘Brickmaker’s Café’ with indoor and outdoor seating opening directly onto the lower terrace, a waterfront plaza and boardwalk, park offices, and various associated amenities. Other project features include a private hospitality suite in a renovated historic building, ‘The Pavilion’ for large outdoor events, and a 5k trail loop around the site.

The building further gives a nod to the area's rich culture and history through the use of river-recovered heart cypress as the building's timber and wood cladding—a species that is native to the area and harvested from the bottom of the river. The area's documented history with the cypress species dates as far back to 1608 where Captain John Smith recounts in his journals seeing cypress trees throughout the area.