100 Bishopsgate is a new mixed-use commercial development comprising a 40-storey tower that provides over 900,000 sq ft of rentable space. The tower forms part of a new half acre public realm space incorporating restaurants, bars and retail units which provides access between Bishopsgate, St Mary Axe and Camomile Street to the north. Szerelmey carried out the design, supply and installation of the stone flooring and internal wall cladding. The flooring was laid using a black basalt called Mountains West; from level 7 to level 37 the basalt was laid at 30mm thickness on a raised floor system and on the ground floor reception area the 1m x 500mm x 30mm basalt was laid on heated screed. The wall cladding installed is the result of an interesting and unusual process. The marble is a north Italian stone called Lassa, which is white with a distinctive smokey grey vein pattern. The architect’s design intent was for the central core of the reception area to appear as though cut from a single block.