Variation of Condition 1 of listed building consent dated 26 June 2016 (15/09739/LBC) for Refurbishment and replacement of facades and erection of 2 additional floors and plant enclosure to both Millbank Tower and 1 additional floor to the Y buildings; excavation of basement levels; demolition of rear car park in association with re-landscaping and reconfiguration of wider site; all in association with the use of the Tower as 207 private residential flats (Class C3) and Skybar (ancillary to adjacent Class C1), the south podium and part of tower as an arts/ cultural facility (Class D1) and the north podium and Y buildings as a 150 bedroom hotel (Class C1) with restaurant, bar and cafe at ground floor level. Use of roof of podium building as a terrace with associated alterations, NAMELY to allow changes to list of approved plans for internal and external amendments to accommodate an increase in number of hotel bedrooms from 150 to 232, complete demolition and rebuilding of the prow to allow for reconfiguation of arts/cultural facility, amendments to the residential mix/layouts in the Tower, re-configuration of basement car parking, adjustments to landscaping and associated alterations.

Variation of Condition 1 and Condition 5 of listed building consent dated 30March 2021 (Ref:21/00839/LBC) for the: Internal and external refurbishment works including replacement mechanical plant, structural strengthening, and partial excavation at basement level. NAMELY, internal alterations, repairs to roof lantern light and replacement window locks. (Linked with 21/05664/NMA)

Variations of condition 3 and 8 of listed building consent dated 6th November 2020 (RN 20/05014/LBC), for the variation of condition 1 of listed building consent dated 17 March 2020 (RN: 19/09420/LBC) for the variation of condition 1 of listed building consent dated 14th December 2015 (RN:15/04587/LBC) for the 'Excavation of single storey basement, erection of double pitch mansard roof extension containing two storeys to replace existing roof and plant rooms and internal and external alterations, including alterations to front entrance and canopy, replacement of windows and installation of new kitchen extract duct. Alterations and extensions in connection with refurbishment of existing hotel. NAMELY, to remove the requirement for the new windows to be single glazed (Linked to 22/02966/FULL)

Variation of condition 3, 8 of listed building consent dated 9th December 2021 (RN 20/02451/FULL) for the Installation of one wall mounted air-conditioning condenser unit within an acoustic enclosure to the rear of the property and associated internal alterations in connection with use as a residential dwelling. NAMELY, to make minor amendments to the size/location of approved fenestration on the front and rear elevation, rearrangement of approved roof lights at main roof level and relocation of air conditioning unit to the rear.

Variation of Condition 1 of listed building consent dated 22 June 2021 (RN: 20/08345/LBC) for, 'Use of the basement, ground and first floor as a public house, and the second, third and fourth floors as meeting rooms / events space (Sui Generis). External alterations including installation of replacement windowpanes at second and fourth floor levels, replacement of windows with louvres at rear third floor level; installation of plant at main roof level and at rear second floor level within an enclosure with green roof. Installation of platform hoist and vent grilles in the Mount Street lightwell and a new high level extract duct at rear second and third floor levels to terminate at roof level; NAMELY to widen the lift shaft and some internal associated reconfigurations.

Variation of Condition 1 of listed building consent dated 22nd June 2021 (RN 21/00510/LBC) for, 'Erection of rear extensions at second, third and fourth floor levels to incorporate a new lift; demolition and replacement of rear courtyard floor slab, replacement of the existing mansard roof and raising of chimney stacks; demolition and rebuild of two chimney stacks on the mews; replacement of windows; installation of air conditioning units at roof level and under pavement basement vaults; Internal alterations including; installations of Fan Coil Units and services throughout, replacement of chimneypieces; replacement floor finishes, insertion of partitions and redecoration throughout'; NAMELY, to remove existing MDF (non-original) fire surround in the service kitchen and replace with a stone fire surround at basement; Remove existing fire surround in the entrance hall and replace with an antique Georgian timber fire surround; Replace the existing non-original timber balustrade at ground floor with a period detailing balustrade; and Replace the non-original plasterboard ceiling in the glazed link with a plasterboard ceiling and replace the high level cornice with a period profile at ground floor; Replace the existing fire surround in the bedroom/ study with an 18th Century marble chimneypiece; Replace the existing fire surround in the master bathroom with a Regency chimneypiece; and Remove the timber surround and step to the phantom door between the stone staircase and lift lobby at second floor; Existing bedroom 2 fireplace to be carefully removed and stored on site; and Relocate the existing fireplace and grate from the master bedroom to bedroom 2 at third floor; Existing entrance hall fire surround to be relocated to bedroom 4 at fourth floor; and Installation of a new period style entrance lantern on the railings to the front of the building; and security cameras.

Variation of condition 1 of listed building consent dated 19th May 2021 (RN 20/00447/LBC) for the variation of condition 1 of listed building consent dated 21 June 2019 (19/03340/LBC) for the Excavation of basement extension beneath the existing property and part of the garden with associated lightwell and rooflights; demolition and rebuild of existing garage building; erection of single storey first floor side extension. Internal alterations including the removal and addition of partitions, NAMELY, to allow an integration of 3 conservation roof lights on the rear pitch of the roof in the main building. (Linked to 21/05100/FULL)

Variation of condition 8 of listed building consent dated 12 April 2018 (RN:17/09924/LBC) for the: Use of 8 Grosvenor Square and 1a and 2 Duke's Yard as a single family dwelling with rear extensions to 8 Grosvenor Square at second to fourth floor levels; infilling of east lightwell and creation of terrace at third floor level; new plant room at roof level. Demolition of ground and first floor rear extension to 1a and 2 Duke's Yard and replacement with new building on sub-basement, basement and ground floors with extended garden terrace to main house over. Use of 1 Duke's Yard as a single family dwelling. Associated internal and external alterations to all buildings. [Site includes Nos.1, 1a and 2 Duke's Yard]. NAMELY, to allow alterations to the roof plant ductwork, attenuator and air intake/exhaust; amendment to flue; introduction of hoop iron and lanterns to railings at Brook Street elevation; amended CCTV positions at Brook Street Elevation & Courtyard East Elevations; and internal amendments to the swimming pool, garages and stairs. (S19 application).

Variation of conditon 1 of planning permision dated 26 February 2021 (RN: 20/08147/LBC) for the: External alterations to the rear including installation of replacement doors windows at lower ground and ground floor, installation of rooflight at second floor level and rooflight at roof level, raising the terrace level and replacement of roof tiles. Internal alterations including installation of replacement lighting at lower ground and ground floor, addition and removal of partitions throughout, erection of staircase in extension at ground floor and installation of ceiling roses at ground and first floor. NAMELY, to allow alterations to the lower ground floor plan through the removal of the wall between the hallway and dining area.

Variation of condition 1 of listed building consent dated 3 June 2020 (20/02584/LBC), which in itself varied condition 1 and removed condition 9 to allow for an amendment to the lower ground floor level of a scheme approved 15 January 2020 (19/04746/LBC) for alterations and extension of the building including partial replacement of the existing lower ground and ground floor rear extension and the creation of an extension at these levels, works in association with a roof terrace to main roof level including new skylights, the lowering of the rear garden level and alterations to the rear garden walls, works within the front lightwell, and internal alterations; NAMELY, for omission of a/c units within rear lightwell,amendments to rear extension, stair overrun and plant enclosure, new rain water pipe location,alterations to stairs in rear garden, reduced excavation beneath rear extension, and internal alterations. (linked to 20/06270/FULL)