Horizontal extension at 8th and 9th floor level; extensions at upper levels to create four new storeys 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 and roof terraces at levels 8, 10 and 12; , removal and replacement of new plant and installation of PV; public realm improvements for new hard and soft landscaping and the provision of retail frontages and retail units to Aldermanbury; provision of cycle storage and other works incidental to the development.

Horizontal extension at 8th and 9th floor level; extensions at upper levels to create four new storeys 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 and roof terraces at levels 8, 10 and 12; , removal and replacement of new plant and installation of PV; public realm improvements for new hard and soft landscaping and 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 for public use 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.

Alterations, including the comprehensive refurbishment of the existing building including elevational changes, and its upward extension by two storeys to create a third floor and set-back fourth floor level, in connection with the provision of 8,873 sqm GIA of floorspace (a net increase of 2,476 sqm GIA) for flexible Class 'E' commercial use, including office accommodation/employment hub, together with café/restaurant space at ground floor and roof level, associated soft and hard landscaping, including upgrading of central courtyard and provision of a roof top garden (both to be accessible to the public as well as occupants of the development); 22 car parking spaces, 106 cycle parking spaces, refuse storage and other associated works.