Variation of Condition 1 of planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to amend the approved drawings to replace a single ground floor level window on the north elevation with a door and to erect of a bridge over the existing lightwell to provide a secondary fire-protected egress point.

Variation of Condition 1 and 11 of planning permission dated 20 October 2022 (RN: 22/04903/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; and amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace; namely, design modifications to the Carlton House Terrace elevation including an additional entrance, pavement lights, replacement railings and re-alignment of a section of the south facade; alterations to the lower ground floor glazing on the west elevation, a new stairwell and platform lift to roof terrace (level 10), widening of central core to accommodate emergency access and fire-fighting lifts, realignment of level 10 balustrade and alterations to south-west lift overrun and amendment to the wording of Condition 11 to include the word 'pergolas'.

Variation of Conditions 31 and 32 of planning permission dated 30 March 2022 (21/07642/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; and amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace; namely, to amend the wording of Conditions 31 and 32 to require the landscaping of the first floor terrace to be carried out in accordance with the submitted details.

Variation of condition 1 of planning permission dated 2nd September 2021 (21/02158/FULL) (as amended by non-material amendment dated 10 August 2022 RN: 22/04890/NMA) for 'Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works'. Namely, the insertion of two new windows at first and second floor level to the north elevation (rear section).

Variation of Conditions 1 and 5 of planning permission dated 10 November 2021 (RN: 21/02084/FULL) for demolition of first floor and roof behind retained front façade, erection of enlarged first floor storey and roof above, erection of single storey side (south) extension, replacement roof to side (north) projection, alterations to rear projection, alterations to windows, use of both garages as internal living accommodation, alterations to landscaping to side and rear and other alterations; NAMELY, to amend the number, size and location of windows, addition of flue to rear and to amend the Sustainability Report.

Variation of Condition 1 of planning permission dated 05 June 2020 (RN: 19/08751/FULL) for, 'Erection of rear extensions at second, third and fourth floor levels to incorporate a new lift; demolition of existing mansard roof and erection of replacement mansard; demolition and replacement of rear courtyard floor slab; installation of air conditioning units at roof level and under pavement basement vaults; demolition and rebuild of two chimney stacks on the mews; replacement of windows on all elevations of the main house, demolition and re-building of rear ground floor toilet annexe, and associated internal and external works'; NAMELY, to allow the reduction in width of the consented new southern rear windows on the second, third and fourth floors; amendment to consented rear walk on roof light panes in courtyard to align glazing bars with door openings above; addition of wall lights either side of front light well basement entrance door; addition of security cameras on the front and rear ground floor elevations; installation of an intercom to the right of the main entrance door; new handrail and balusters to staircase between second and fourth floor; and various internal alterations to all floors, landscaping works to the rear courtyard comprising rendering; stone paving; installation of light fixtures and installation of trellis panels.

Variation of Condition 1 of planning permission dated 01 March 2018 (RN: 17/09342/FULL) as amended by a non material amendment dated 18 May 2020 (RN/20/03063) for, 'Demolition including the existing fourth floor, roof above and partial demolition of rear wall. External alterations including the erection of a replacement fourth floor with an additional single storey mansard storey at fifth floor level above; erection of an extension to the rear to new fifth floor level to provide an additional seven bedrooms for use in connection with the existing hotel (Class C1); extension to existing lift shaft with overrun and creation of new lift shaft with an overrun at new roof level; creation of a new green roof; relocation of existing roof plant within enclosures in two locations at fourth and fifth floor levels. reinstatement of Juliet balconies at first floor level and the erection of a new portico at ground floor level along the Clarges Street frontage. Internal alterations at all levels throughout and associated works (Site includes 39-42 Clarges Street)'; NAMELY, to allow the reconstruction of the rear wall of no. 7 Half Moon Street and the reconstruction and extension of the rear wall of no. 8 Half Moon Street; removal of a closet wing wall at the rear of no. 10 Half Moon Street closest wing wall to facilitate a larger, more accessible lift lobby and associated removal of an adjacent window; rebuilding and straightening of a corridor on the first and second floor of nos. 7 and 8 Half Moon Street; and associated works.

Variation of condition 1 and removal of condition 6 of planning permission dated 23 April 2019 (RN 19/01643/FULL) for 'Demolition of existing building, excluding front elevation and party walls, and construction of replacement building with mansard roof and rear extensions and altered front lightwell'. Namely; to amend the design and material (crittall/ metal frames) of the rear first floor window and rooflight.