We collaborated with architects Squire and Partners to produce a flagship building for the Art’otel brand of boutique hotels in Hoxton, the first of its kind in London. This exciting aluminium-clad eighteen-storey tower building, which fuses art with modern architecture, sits on the edge of a busy interchange where trendy Shoreditch comes close to the city.
The area as it stood was in need of regeneration, but given its location within the South Shoreditch Conservation Area, it was crucial that our proposals were appropriate and in line with the character of the existing structures. On such a restrained urban site, obstructions were an obvious initial concern. An existing four-storey building with a single level of basement, formerly home to teaching facilities and offices, required demolition.
Party wall concerns were a threat to both the programme and potential construction methods: we sought to understand the surrounding structures to ensure that the introduction of an impressive four-storey basement as well as the tower and two adjoining wings would not be detrimental. The basement extends across the whole site, and reaches depths of up to 18 m. Having undertaken comparative analysis of possible methods of retaining, we designed a 900 mm diameter secant pile wall as the most appropriate solution in terms of structural robustness, buildability and economy.
In considering the superstructure, we chose concrete for its superior thermal mass and acoustic properties, as well as programming advantages. There were benefits to a number of construction methods, and our end solution split the structure into two sections vertically. Between the first and ninth floors, an in-situ crosswall system was adopted, creating a regular internal layout; above this, the client sought more flexibility, so we designed a reinforced flat slab with columns set around the perimeter and close to the central service risers, to maximise internal column-free space.
An eighteen-storey cross-wall construction boutique hotel in Hoxton with four-storey basement
Squire and Partners
£ 50 million