Horizontal extension at 8th and 9th floor levels and three-storey vertical extension plus plant enclosure to create Class E floorspace; alterations and refurbishment to existing windows and facades; structural alterations and repositioning of cores; creation of new and refurbished entrances on Gresham Street and at the junction of Aldermanbury and Love Lane; creation of inset balconies; creation of roof terraces at levels 8, 10 and 12; removal and replacement of plant and installation of PV; public realm improvements for new hard and soft landscaping; removal of ground floor mezzanine level facilitating the provision of retail frontages and retail units to Aldermanbury; provision of cycle storage and other works incidental to the development.

Part demolition of the site for the refurbishment and extension to the existing facade facing onto Exchange square and upper levels; External alterations and improvements to facades facing onto Bishopsgate and at ground floor including new main entrance and new retail frontages; public realm improvements fronting Bishopsgate including new steps, seating and accessibility improvements; Increased height and widening of Exchange Arcade; creation of a new outdoor retail pavilion terrace to level 1; creation of west extension terraces; creation of wing extension terraces; provision of external terraces for occupants at levels 4, 8, 9, 10, 11, 12 and roof terrace on level 13; provision of cycle storage and other works incidental to the development (9,920 sq.m).