The building comprised of timber in its upper structures, bridges and slabs features a long and slim footprint covering an area of ca. , m. SBC makes full use of the allowed maximum building height of . m across seven floors, and is based on an ideal office bar typology measuring m in width. Instead of one single zig-zag volume, as envisioned in the masterplan, BIG’s design consists of two stacked and rotated zig-zagging bars.

The units are experiments in communal living. While each resident has their own bedroom, bathroom, and kitchen, they share amenities like a courtyard, kayak landing, bathing platform, barbecue area, and roof terrace. Decks and staircases connect the apartments. Inside, the units are well appointed with modern finishes and ample daylighting; floor-to-ceiling windows let the students take in panoramic views.

Located along Independence Avenue SW from th to th street, the roughly -acre site includes the Castle, the Arts and Industries Building, the Freer Gallery, and the Hirshhorn Museum and Sculpture Garden – all individually listed or eligible for listing on the National Register of Historic Places – and the mostly subterranean Quadrangle Building which is home to the National Museum of African Art, the Sackler Gallery of Art and the S. Dillon Ripley Center.

The building’s structure is designed as a stack of two volumes, or rectangle ‘blocks’ &#; two per floor &#; with each pair rotated degrees from the floor below. On the interior, each individual volume is expressed as a rectangular wood-clad truss on the long edges, and as a floor-to-ceiling glass facade on the shorter sides. The continual rotation of each floor creates a sky-lit, central atrium at the heart of the building that provides direct views into classrooms and research spaces from all levels.

Wrapped with adaptive façade louvers that are oriented according to sun angles and building geometry to minimize solar gain, the façade will become a fingerprint for the building, with a specific imprint that exists only for the O-Tower, and only in Hangzhou. The fingerprint façade will reduce solar gain by up to %, providing significant savings for cooling loads and better thermal comfort for OPPO staff, while at the same time reducing glare, reflectivity and light pollution.