This exciting 11 storey residential development comprises three main blocks twisting on plan as the building increases with height. 

The rotation results in the upper two tiers cantilevering out over one other up to 9m from supports, providing a striking architectural form. Our role as structural engineers has been to achieve this challenging form with an in-situ concrete framed structure with minimal transfer structure. This has been achieved by incorporating a number of deep cantilevered reinforced concrete shear walls at high levels (spanning over a depth of 2-3 storeys) in order to support the large areas of cantilevered floors, requiring complex temporary works designs to be incorporated throughout the works. The main floor structures have been formed as post-tensioned slabs to provide an efficient design, dealing with general irregularity of the structural grid, minimising floor slab thicknesses whilst also controlling slab deflections for long-span areas of the floor slab and overhangs to perimeter slabs

Requiring close consultation with English Heritage and the Canal and Rivers Trust, the project abuts the Grade II* listed Jackson’s Warehouse and completes the enclosure of the Piccadilly Marina designed by Civic Engineers (Formerly Stockley) for Town Centre Securities.