The 110m, 29-storey curved on plan Westmark Tower is the tallest residential tower to have been completed in central London in 2021. Part of Berkeley Homes Central London’s prestigious West End Gate development in Marylebone, it features more than 14,000m2 of unitised curtain wall designed and supplied by aluminium fenestration specialists AluK and installed by envelope contractors Martifer.

What makes this project really stand out is the collaborative approach that was demonstrated by AluK and the other consultants involved from the outset. With Berkeley at the centre of the process, the technical and commercial elements of the façade were successfully de-risked at pre-tender stage because AluK was able to work directly with lead architect Squire & Partners, delivery architect Design Delivery Unit (DDU), façade consultants Cladtech Associates and structural engineers WSP on a RIBA 4 system design for the unitised envelope