The building’s double curved, precast concrete façade bows inwards to create a generous urban canopy that responds to the ‘shock wave’ of the park’s circular running track, activity pods and planting vignettes – rippling outwards like rings in water to invade the building’s footprint. Visitors and employees can admire the mothballed ships sitting in the adjacent docks while embracing the Central Green Park.

The building includes flexible workspaces with a full-height perimeter glazed-façade – maximizing daylight and offering panoramic views towards historic landmarks such as World Heritage St Paul’s Cathedral, Old Bailey, St Brides and the Royal Courts of Justice. Fleet Street embeds strong environmental credentials geared to meet the benchmarks set out by Whole Life Carbon and Circular Economy principles to reduce the embodied carbon of the development.

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 sinuous direction of the façade corresponds to the solar orientation: it maximizes north-facing openings for natural light and views, while minimizing exposure on the sunny sides. Working with Arup engineers, BIG calculated that this very simple idea reduces the solar exposure and resultant air conditioning expenses by % &#; without any moving parts or complicated technology. Purely because of the inherent properties of the building geometry, the building performs

The building’s massing is born from the site which follows the existing curve of the road and wraps to create a slender m ribbon-like office space that reflects the dynamic quality of its surroundings. The rooftop acts as a fifth façade and winds down to create a string of linear garden terraces that are connected by a stair at the western edge serving as a secondary means of fire egress and a linear park.