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 of Listed Building Consent dated 18 Auguest 2020 (20/01721/LBC) for alterations including replacement of windows to front and rear elevations, demolition of infill extension and water closet at rear ground floor level, rationalisation of pipework to rear, replacement of front entrance tiling and internal alterations on all floor levels in connection with the use as a single family dwellinghouse.; NAMELY, to reinstatement of rear lightwell at lower ground floor level. Installation of a green wall including associated internal alterations (e.g. new internal door openings, new double doors to terrace, removal and replacement of storage cupboards, etc).

Variation of condition 3 of listed building consent dated 13th August 2019 (RN 19/04617/LBC) for the Excavation of two sub-basement levels and associated internal and external alterations all in connection with the use of the building as a hotel, including restaurant at ground and lower ground floor levels. Creation of balconies at fifth floor level and installation of air conditioning units at sixth floor level. NAMELY, to enable implementation of the planning permission and condition 3 to follow as basement Excavation Works Pre Commencement Condition. Prior to the commencement of any works associated with the approved basement excavation including, (a) Demolition, (b) Earthworks/piling and (c) Construction. (Linked to 22/02312/FULL)

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 condition 1 of listed building consent dated 06 July 2020 (RN: 20/04226/LBC) for the: Construction of small extension to Presbytery at ground and first floor to facilitate the installation of a new glazed corridor link between the Church and Presbytery and a new wheel-chair accessible lift and staircase; demolition and replacement of part of roof to Presbytery including installation of new rooflights; provision of wheelchair access and associated alterations. Namely, to allow the introduction of new traditional lightwells and associated railings formed by the removal of brick vaults to Bourne Street.

Variation of Condition 1 of listed building consent dated 19th July 2018 (RN: 18/02362/LBC) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY, (i) Amendments to the design of the main door of the residential entrance at the Baker Street front elevation; (ii) Amendment to the material finish of the residential entrance to the building at the Baker Street front elevation; (iii) Internal layout changes to 1st - 4th floor flats at 96-98 Baker Street; (iv) Reconfigured exhaust shaft for theatre at 1st floor terrace to the Baker Street rear elevation; (v) Modification to bedroom windows at the Baker Street rear elevation to accommodate exhaust shaft for theatre; (vi) Revised location of access hatch to roof; (vii) Reduced area for clerestory pop-up at Baker Street rear elevation; (viii) Addition of a guard rail at roof level; and (ix) Introduction of external pipework to the Baker Street rear elevation.

Variation of Condition 1 of listed building consent dated 19 July 2018 (RN: 18/02362/LBC) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY, to allow reconfiguration of the existing garage and 14 Sherlock Mews entrance at ground floor, including the replacement of all doors at ground floor with a unified design and appearance; reconfiguration of the internal layouts to levels 1 and 2; unify the 14 Sherlock Mews elevation in brickwork of a consistent colour, bonding and character; replacement of windows; refurbishments to the front facade of the mews house; and associated works.

Variation of condition 1 of listed building consent dated 31 March 2020 (RN 20/00328/LBC) for the Demolition of existing extensions at rear lower ground and roof level; excavation at rear lower ground floor level and erection of extensions at lower ground, ground, first and second floor levels to rear with terrace at ground floor level; partial infill of front lightwell; and associated external alterations. Internal alterations including changes to plan form. Namely, alterations to the design of the rear ground floor terrace door, removal of step to terrace and formation of fan light over rear terrace door.