Structurally, the pavilion was a giant self-supporting tubular steel truss, similar to the hull of a steel ship. The external façade structure was the buildings most efficient element. The perforation holes let in daylight and created natural ventilation. It was the only pavilion out of + that did not use mechanical cooling. Due to the structural performance of the truss, the degree of perforation varied with the structural stress along the façade.

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 museum is comprised of a series of generic gallery spaces where, due to the curved form of the glass windows, the variety of daylight entering the museum creates three distinctive galleries. Stacked vertical, dark galleries with artificial lighting are found to the south, and a large horizontal, naturally-lit gallery with panoramic views is located on the north side. In between these spaces is the sculptural gesture, creating a twisted sliver of roof light.

To ensure an efficient, robust and healthy work environment for Suitsupply’s staff, the building hosts a sequence of terraces in gradual setbacks on the upper-level floors, allowing for relaxing moments during the work day. Dense tree and bush plantings on the lowest terrace floors offer wind protection, while grass and shrubs on the highest terrace floors resist the elements and allow for higher sun exposure.

The Shriver Program providing special education for students aged to occupies two floors of the building accessible from the ground floor, and has specialized spaces dedicated to support APS’ Functional Life Skills program as well as privacy and ease of accessibility; the gymnasium, courtyard, occupational physical therapy suite, and sensory cottage are designed to aid in sensory processing.