Amendments to planning permission dated 14 March 2022 (RN: 21/08778/FULL) for the: Erection of a rear dormer extension and side (conservation style) skylight. Single storey rear extension living area at lower ground floor level. Excavation of a new basement level under front garden. Landscaping to front, side and rear gardens and creation of waste store. Namely, to reduce the size of the rear extension's lantern and regularise its shape; omit triangular fan light from the rear elevation of the rear extension; simplify pergola design; and replacement of window sashes with slimline double glazing.

Amendments to planning permission dated 05 September 2022 (RN: 21/04272/FULL) for variation of condition 1 of planning permission dated 4th December 2020 (RN 20/02024/FULL) for the seven-storey rear courtyard extension of the existing office building at the basement, ground, first, second, third, fourth and fifth floor levels; a two storey extension on Harewood Avenue at 7th and 8th floor level and an extension to the Harewood Row/Lisson Grove elevations at third, fourth and fifth floor level for additional office space (Class B1), comprising the relocation of the existing mechanical plant and services; change of use of the existing office space (Class B1) to flexible retail space (Class A1/B1) at part basement, part ground floor at the corner of Harewood Avenue and Harewood Row; upgrade works to the existing entrances along Harewood Avenue and Harewood Row; refurbishment of the existing vehicle entrance on Lisson Grove including an enclosed loading bay; reconfiguration of car parking and cycle parking at the basement level; and the introduction of planting and landscaping to the existing entrance on Marylebone Road. Namely, to incorporate amendments including replacement windows, amendment to Marylebone Road and Harewood entrances, change to cladding on rear facade, increased extents of green roofs/planted terraces and increase to the extent of the courtyard facade; NAMELY, changes to the opening mechanism of 8 basement windows to allow for ventilation in association with building regulation requirements for smoke extraction.

Amendments to planning permission dated 10th June 2021 (RN: 21/01382/FULL) for erection of a single-storey extension to the rear. Single-storey front extension to existing side infill. Works to existing fenestration. Installation of a new side entrance door to the eastern flank wall. New window to the western flank wall. Alterations to the front driveway and entrance piers. NAMELY, alterations to materials of landscaping.

Amendments to planning permission dated 20 December 2022 (RN: 22/05746/FULL) for variation of Condition 1 of planning permission dated 08 September 2014 (RN:14/03923/FULL) for the excavation to create basement extension and lower pavement vaults; removal of existing extensions and replace with extensions at rear lower ground to third floor level including roof terrace at rear first floor level; erection of fourth floor extension in mansard style to rear and open up blind windows to front; installation of plant within mansard structure; new landscaping to garden and replace boundary wall with 16 Wilton Crescent; namely, alterations to the size and position of the new rooflights and access hatch at roof level, opening up of a blind window at rear third floor level and alterations to the glazing on the front elevation. Namely, internal alterations to the staircase at Lower Ground, Ground and First Floor.

Amendments to planning permission dated 12 July 2022 (RN: 21/07264/FULL) for alterations and extensions to the Ritz Hotel and William Kent House including the change of use of the casino to a dual flexible use as hotel and/or private members club, a two storey side extension to William Kent House, extensions to the Ritz hotel including on the site of 22 Arlington Street comprising an extension of five basements, lower ground, ground, mezzanine and seven upper floors to provide additional hotel floorspace, new and upgraded hotel facilities including hotel rooms, restaurant and spa, new entrances on Arlington Street, arrival and drop off facilities, changes to the servicing and refuse facilities, car and cycle parking, plant, landscaping and all works including demolition, enabling, highways and other ancillary works. Namely, minor alterations to the ground and upper floors of William Kent House (WKH) and the triangular staircase in the Ritz building; and external works to WKH including re-spacing balcony columns; ground floor external door detailed with light; first floor French windows cills lowered; new soil pipe to south west façade; Increased scope of slate replacement; relocated position of access hatch and dormer; new access ladder; windows and dormer louvre modification and to junction between Winter Garden and WKH.

Amendments to planning permission dated 1st October 2021 (RN:20/06914/FULL) for, 'Variation of conditions 1, 31 and 35 of planning permission dated 4 March 2020 (RN 19/06767/FULL) (amended by 20/05397/NMA) which permitted the following development : Demolition of the existing buildings at 19-35 Baker Street, 88-110 George Street, 69-71 Blandford Street and redevelopment to create a mixed use scheme providing commercial uses and up to 51 residential units within a new ground plus nine storey building (and an enclosed plant area) on Baker Street; a new stepped ground plus four to ground plus six storey building on George Street; refurbishment, extension and the change of use of the first floor from office to residential at 30 Gloucester Place; creation of a single storey basement level linking the Baker Street and George Street buildings to provide car and cycle parking, refuse and servicing; creation of a new central, publicly accessible courtyard; removal of 5 trees and replacement trees across the site, a new publicly accessible route at ground level connecting Baker Street and Gloucester Place; associated plant, landscaping, replacement pavements in part and other associated works'. Namely, Works to the building, including changes to the East Elevation façade including additional non-openable windows, changes to the layout of the ground floor retail units, refurbishment of the roof, and other associated works

Amendments to planning permission dated 1st November 2022 (RN: 22/05327/FULL) for erection of a single storey rear extension at ground floor level, rear first floor extension to occupy the current rear terrace and part of flat roof; roof terrace at rear first floor level; enlargement of the roof with insertion of dormer windows to front and rear, and roof lights to rear; alterations to existing windows, new front gate and alterations to landscaping and parking and air conditioning unit with acoustic screening; infilling of the front entrance porch; and amendments to the side extension at ground floor level and a new rooflight NAMELY, the relocation of the plant room door and introduction of a new small window in the utility room.

Amendments to planning permission dated 20th July 2021 (RN:21/01934/FULL) for Erection of 2 storey extension to accommodate residential (Class C3) accommodation including terraces and green roofs. Associated works to include refurbishment of the existing exterior and landscaping in connection with the provision of additional parking spaces. Namely, the installation of glazed ceramic instead of solid stone spandrel panels under the windows of the existing flats and amendments to south elevation at 12th floor level

Amendments to planning permission dated 3rd February 2022 (RN:21/08237/FULL) for Demolition of the existing conservatory, erection of a rear extension and the infilling of two light wells in connection with the use of the ground floor and basement as a restaurant (Class E). Alterations to front entrances and replacement of existing shopfront. Alterations to rear elevation including fenestration and at roof level in connection with use of the upper floors as three self-contained C3 residential units each with private external amenity areas including a roof terrace together with associated plant and landscaping (site includes 77 Marylebone Lane). Namely, to alter the 3rd floor arrangement and location for access to the roof terrace in order to comply with building regulation requirements for clear access via the staircase that was previously approved.

Amendments to planning permission dated 09 June 2017 (RN:16/07188/FULL) for Variation of Condition 1 and 13 of planning permission dated 26 October 2015 (RN: 15/04136/FULL) for the partial demolition, extension and refurbishment of buildings at 1-3 Buckingham Gate and 1 Palace Street (street block bounded by Stafford Place, Palace Street and Buckingham Gate) including excavation to form three basement levels, in connection with use of site as 72 residential units (Class C3) and a restaurant (Class A3) to the ground floor and part basement to the corner of Palace Street and Buckingham Gate. Associated vehicular access from Palace Street, storage, plant, landscaping, basement parking and ancillary residential facilities, namely, alterations to doors and windows.