Excavation of basement with lightwells to front; Demolition and replacement of rear extension at lower ground floor level with terrace at ground floor level; Excavation to lower ground floor and rear garden; Use of garage for additional internal accommodation; Installation of plant machinery to rear; Demolition of garden house; Replacement of windows throughout (part-retrospective); Landscaping works to front and rear gardens; and associated external and internal alterations. (Linked to 23/04725/FULL)

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 (Amendments to listed building consent dated 15 March 2023 RN:23/00253/LBC).

Provision of a temporary Chamber for the House of Commons and supporting facilities and infrastructure, including substantial demolition and redevelopment of Richmond House to create a part seven storey, part six storey building with a roof terrace and three levels of basement, to provide accommodation for parliamentary uses (Sui Generis). Refurbishment and internal and external alterations to 49, 50, 53 and 54 Parliament Street and 85 Whitehall, including a new bridge link, to provide a visitor entrance, visitor shop and workspaces for MPs and supporting staff (Sui Generis). Landscaping works to the forecourt of Richmond House and Richmond Terrace, and associated works including temporary construction works. (Linked to 19/08220/FULL). REVISED SCHEME: including amendments to stair tower on south elevation, reduction in lift overrun to Richmond Terrace, amendments to eastern elevation facing Curtis Green and roof plan to include additional planting RE-CONSULTATION following receipt of Addendum to originally submitted Environmental Statement (ES) and further information (EIA Reg25) including updates to ES: Ch 4 Approach to assessment, Ch 6 Townscape & Visual Impact, Ch 7 Cultural Heritage, Ch 12 Ground Conditions, Ch 13 Cumulative Impacts

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. (Amendments to listed building consent dated 20 December 2022 RN:22/06711/LBC to alter internal layout on the ground, first and second floors of William Kent House; minor external alterations to William Kent House; and alterations to extent of demolition proposed to the triangular staircase within the main Ritz building).

Demolition and rebuilding of rear section of building, excavation to create a two-storey basement, extensions and associated refurbishment of Grosvenor Gardens House, to provide 42 residential units (Class C3) on first to seventh floors; reconfiguration at ground floor level to provide mixed retail/restaurant use; wellness facility, residential storage, plant, car and cycle parking at basement levels; public realm works to Eaton Lane; and associated external and internal alterations.

Redevelopment of Pegasus House and Nuffield House including demolition behind a retained facade (west, south and east) of Nuffield House and replacement building comprising 2 level basement, ground, mezzanine and first to seventh floor and demolition and replacement of Pegasus House comprising 2 level basement, ground, mezzanine and first to fifth floors and other associated works already approved under application RN 20/07676/LBC additional works include Namely, at roof level to retain the existing boundary wall between the site and the neighbouring property at 36 Sackville Street, to adapt the head of the secondary staircase and the relocation of the generator flu to the centre of the staircase, and to install a lead and stone cap infill where a modest gap will be created between the site and 36 Sackville Street.

Redevelopment of Pegasus House and Nuffield House including demolition behind a retained facade (west, south and east) of Nuffield House and replacement building comprising 2 level basement, ground, mezzanine and first to seventh floor and demolition and replacement of Pegasus House comprising 2 level basement, ground, mezzanine and first to fifth floors and other associated works already approved under application RN 20/07676/LBC additional works include retention of angled wall at roof level of Pegasus House and remodelling of roof above stair well.

Excavation of basement storey beneath main house, demolition and rebuilding of mews house at new height plus the addition of a lower ground floor storey, demolition and rebuilding of main roof plus addition of plant equipment, erection of extension for lift from basement to third floor level, demolition and replacement of interconnecting extension between main and mews house, use of roof of interconnecting extension as a roof terrace, increasing height of boundary shared with 78 Chester Square and other external alterations as well as internal alterations throughout. (Linked with 22/05927/FULL)

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. (Amendments to listed building consent dated 12 July 2022 RN:21/07265/LBC).

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.