ISG will start work this summer on The Residences at Mandarin Oriental Mayfair where the cheapest of the 80 apartments will cost £1,999,000.

The site will also be home to a new 50 suite Mandarin Oriental Hotel and four basement levels of dedicated amenity space.  It is due for completion by the end of 2021.

David Laycock, Development Director at Clivedale London, said: “With piling and basements works already in place we are delighted to announce the appointment of ISG who will commence work on site, for the next stage of superstructure works, in Q3 2019.”

The Residences at Mandarin Oriental Mayfair will form part of a mixed-use development at 22 Hanover Square housed within a striking multi-level building designed by architects Roger Stirk Harbour + Partners.

Employing an innovative exoskeletal steel frame, to produce a vierendeel structure around the perimeter of the scheme’s linked, nine and 11 storey buildings, the design will eliminate the developments need for a central reinforced concrete core.

The buildings will be joined via a translucent glass connecting core, housing panoramic lifts, glazed walkways and a feature steel staircase, providing future residents and guests access to the Mandarin Oriental Hotel’s facilities.

Steven McGee, Managing Director of ISG’s Construction South business, said: “Our first project for Clivedale London represents one of the most eagerly awaited developments in Mayfair, bringing internationally renowned architecture and the peerless luxury of the Mandarin Oriental Hotel brand to Hanover Square.

“The residential element of the scheme means owners will reside in London’s newest iconic building, on the doorstep of one of London’s most vibrant communities, with outstanding access to 5-star hotel facilities.”