Alterations to glazing within the existing frames, new entrance door, internally illuminated building number; door entry system and extension of an existing vent to roof level.

Internal alterations to the existing buildings including: (i) reconfiguration and refurbishment; (ii) demolition of internal partitions; (iii) installation of new marble finishes within the foyers; (iv) restoration of original floor finishes; (v) installation of new internal finishes; (vi) installation of secondary glazing; (vii) infill of existing lightwells; and (viii) associated works. External alterations including (i) part demolition of the existing roof; (ii) erection of infill extensions and two storey roof extension; (iii) creation of terraces and plant enclosure at roof level; (iv) creation of new entrances; (v) alterations to the facade; (vi) reinstatement of bottle balustrade; (vii) reinstatement of turret on Finsbury Circus elevation; and (viii) associated works.

(i) Infill extension at third, fourth, fifth floor and roof level and infill of western lightwell at lower ground floor level to provide additional office (Class B1) floorspace; (ii) creation of terrace area at third floor level; (iii) infill of the rear lightwell and part demolition and reconfiguration of the basement levels storage vaults for ancillary facilities; (iv) reconstruction of the main entrance steps ; (v) installation of a platform lift and associated alterations to the forecourt including soft landscaping; (vi) the reconfiguration of internal layouts of building from lower ground to fifth floor levels, associated external refurbishment works and reconfiguration and installation of plant equipment.

Installation of eight air conditioning units and an extension of the existing balustrade and planters to create an additional area of plant at roof level.