Confirmation that the demolition of the pergola structure and supporting adjoining stonework chimneys at Level 10 on the West Wing of 55 Broadway constitute a material operation which has lawfully implemented planning permission dated 23 December 2020 (19/09813/FULL) for: Conversion of buildings for use as hotel (Class C1) with ancillary flexible retail, leisure/spa, restaurant or bar use and other associated facilities; use of 10th floor roof terraces; internal and external alterations including creation of new service bay off St Ermin's Hill, reconfiguration of entrances/exits to St James's Park Underground Station and rooftop plant.

Demolition of the majority of existing buildings on Plots A, B, C & D including Canterbury House, Stangate House, 10 Royal Street and 20 Carlisle Lane; part retention of existing buildings on Plots E and conversion of the railway arches (Plot F); comprehensive phased redevelopment of the site to provide a mixed use development of buildings 12-16 storeys in height containing commercial floorspace (including lab enabled floorspace), residential, retail and community floorspace; enhanced public realm and pedestrian routes; re-location of listed sculpture; servicing, ancillary plant and storage, cycle parking and other associated and ancillary works.

Demolition of the majority of existing buildings on Plots A, B, C & D including Canterbury House, Stangate House, 10 Royal Street and 20 Carlisle Lane; part retention of existing buildings on Plots E and conversion of the railway arches (Plot F); comprehensive phased redevelopment of the site to provide a mixed use development of buildings 12-16 storeys in height containing commercial floorspace (including lab enabled floorspace), residential, retail and community floorspace; enhanced public realm and pedestrian routes; re-location of listed sculpture; servicing, ancillary plant and storage, cycle parking and other associated and ancillary works

Amendment to planning permission dated 20 June 2016 (RN:15/10444/FULL) for the variation of Condition 1 of planning permission dated 8 December 2011 (RN:10/01741/FULL) for development of 55-91 Knightsbridge (including retention of Knightsbridge and William Place facades) to provide retail (Class A1) at basement and ground floor levels, office ( Class B1) at part ground, first, and second floor levels and residential flats at part ground, part first,part 2nd and 3rd to 5th floor levels. Off street servicing and new sub basement car park. Removal and replacement of existing tree on William Street. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Restoration and repair of external facades and roofs to 3-7 William Street including reinstatement of original roof profile at 4 William Street, conversion of 1st to 3rd floor levels of 3 and 4 William Street for residential purposes ( Class C3). Namely, variation of Condition 17 with substitution of a revised Energy Strategy.

Amendments to planning permission dated 29th July 2014 (RN 13/09737/FULL) for the demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards. Namely, alterations to internal layout, provision of new window, changes to roof level terrace, balustrading and arrangement of planters, provision of new guarding and access gate at level 09, openable windows, internal works, alterations to roof screen, new smoke shaft to north east corner, new smoke extract at level 09 and new fixings for maintenance purposes.

Amendments to planning permission dated 29th July 2014 (RN:13/09737/FULL) for demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards. Namely internal layout changes to Basement Level -1.

Amendments to planning permission dated 07 April 2017 (RN:16/06616/FULL) for the: Demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards, NAMELY to vary condition 31 to read as follows: 'You must apply to us for approval of details of tests undertaken on the installed CHP system to demonstrate that it conforms with the details modelled in the updated air quality assessment presented in the letter from Parsons Brinkerhoff dated 11th November 2016 and titled "WSP | Parsons Brinckerhoff Response to GLA Air Quality Comments - Ergon House (16/06616/Full). You must submit the relevant details to us for approval within three months of occupation. You must then carry out the development in accordance with the approved details.'

Amendments to planning permission dated 29 July 2014 (RN: 13/09737) for Demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards; Namely, the introduction of a winter garden at ninth floor; amending existing double glazed semi-circular windows to Crittall double glazed; the addition of decorative grilles in north core; additional lights; new double glazed Crittall doors to third floor Juliet balconies; minor amendments to layouts; removal of rooflght to south core and new balustrades to north core balustrades and sixth floor colonnade, alterations at roof level and other external changes.

Amendments to planning permission dated 20 June 2016 (RN: 15/10444) for: Variation of Condition 1 of planning permission dated 8 December 2011 (RN10/01741/FULL) for development of 55-91 Knightsbridge (including retention of Knightsbridge and William Place facades) to provide retail (Class A1) at basement and ground floor levels, office ( Class B1) at part ground, first, and second floor levels and residential flats at part ground, part first,part 2nd and 3rd to 5th floor levels. Off street servicing and new sub basement car park. Removal and replacement of existing tree on William Street. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Restoration and repair of external facades and roofs to 3-7 William Street including reinstatement of original roof profile at 4 William Street, conversion of 1st to 3rd floor levels of 3 and 4 William Street for residential purposes ( Class C3). Namely, the substitution of new drawings to allow minor material amendments comprising a revised number and mix of residential units; the provision of a terrace for a residential unit on the western end of the building; erection of a lift shaft to the rear of 4 William Street; alterations to shopfront of Nos. 3 - 4 William Street; extension at 4th floor level to the rear of Knightsbridge; and reconfiguration of the fenestration. Namely, amendment to the external air vent at 4 William Street.