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 15 October 2019 (RN: 19/03380/LBC) for the: Ground floor alterations to shopfronts and car parking entrances on Great Titchfield Street and Winsley Street. NAMELY, to allow alterations to the detailed design of the shopfronts and the residential and office entrances on Great Titchfield Street and Winsley Street including replacement of dark bronze anodised aluminium façade panelling, window frames, doors, louvres, fire panel, entrance hall with dark burnished; bronze/bronze effect panelling; new mirror polished stainless steel residential entrance door and security side panel; replacement of back-lit UK House signage with dark burnished brass/bronze effect finish mounted on curtain wall transom; and additional louvre to Winsley Street facade. (Linked with 21/06119/FULL)

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, condition 4 (parts a, d, e, g, h, I, j, k) and condition 5 (parts i, iv, v, vii, viii, x) and the removal of condition 4 (parts b, c, f), 5 (parts ii, iii, vi and ix) and 8 of listed building consent dated 3 December 2020 (RN: 20/03709/LBC), which itself varied Condition 1 of listed building consent dated 3 April 2018 (RN: 17/10530/LBC) for 'Alterations to the existing building including removal of existing roof top plant and extension to create an additional storey at fifth floor with tiled mansards and lead clad dormer windows to front and rear; a single storey extension at fourth floor comprising a glazed dome above the existing rear bow; installation of plant at roof level; partial infilling of lightwell adjacent to Gwydyr House; facade cleaning and other facade repair; internal alterations including reconfiguration, fabric removal, and refurbishment works on all floors; refurbishment of meetings rooms, entrance reception and offices; installation of new heating and cooling equipment; provision of a glazed research pod in the library; installation of light-boxes above the central stair and library, and other associated works'. Namely, to allow amendments to the approved scheme that include the installation of a proposed smoke extract system to mechanically ventilate new smoke lobbies to the secondary staircase; the removal of the lift access to the new fifth floor level and associated rooftop overrun; internal alterations at fourth and fifth floor levels; and alterations to ducting at roof level.

Variation of condition 1 of listed building consent dated 14 April 2020 (RN 20/00004/LBC) (which varied listed building consent dated 29 April 2016 (RN: 15/10368/LBC)) for 'Substantial demolition and redevelopment behind retained front facades as well as the demolition and reconstruction of mews properties to create two single family dwelling houses. Associated alterations and extensions include subterranean basements, which will extend beneath the mews, part courtyard and the rear sections of the listed buildings; re-instatement of the party wall in the rear courtyard; re-instatement of entrance to no.108; rear lower ground floor extensions partially infilling the rear courtyard and with roof terraces above; construction of full height closet wing extensions; reconstruction of mansard roof extension; installation of mechanical plant; and internal alterations on all floor levels (Site includes nos. 107 - 108 Eaton Square and nos. 107 - 108 Eccleston Mews)'. Namely, to allow minor amendments including a reduction in size of the basement extension (omission of the basement beneath the main house of both properties), alterations to the appearance of the building including retention of parts of the rear elevation and changes to the lower ground floor courtyard fenestration, and internal changes. NAMELY, to vary the approved drawing numbers to amend the roof of the lower ground floor link to form a roof terrace, alteration to to the lower ground floor fenestration, change to the new rear outrigger fenestration detail and internal changes to the main houses.

Variation of condition 1 of listed building consent dated 16 April 2018 (RN: 18/01437/LBC) for the: Variation of Condition 1 of listed building consent dated 18 August 2017 (17/03792/LBC) Demolition of rear extensions and erection of a new extension at the lower ground to the fourth floor levels, excavation of a basement to the rear of the main dwelling, replacement windows, and refurbishment of the front pavement vaults, and associated internal and external alterations in connection with the use of property as a single family dwelling house. Namely, to allow the modification of roof level acoustic enclosure to house the approved air conditioning units.

Variation of condition 1 of listed building consent dated 3 April 2018 (RN: 17/10530/LBC) for 'Alterations to the existing building including removal of existing roof top plant and extension to create an additional storey at fifth floor with tiled mansards and lead clad dormer windows to front and rear; a single storey extension at fourth floor comprising a glazed dome above the existing rear bow; installation of plant at roof level; partial infilling of lightwell adjacent to Gwydyr House; facade cleaning and other facade repair; internal alterations including reconfiguration, fabric removal, and refurbishment works on all floors; refurbishment of meetings rooms, entrance reception and offices; installation of new heating and cooling equipment; provision of a glazed research pod in the library; installation of light-boxes above the central stair and library, and other associated works'. Namely, to vary the approved drawing numbers to make amendments including a reduction in size of the glazed dome and automatic opening vent, increase in size of the plant area, omission of a rooflight bay and internal alterations.

Variation of Conditions 1, 13 (part vi) & 19 (part h) of listed building consent dated 17 February 2020 (19/09926/LBC); for Alterations to existing building including creation of new pedestrian & vehicular entrances; alterations to bottle balustrades & parapets; creation of three additional storeys at fifth, sixth & seventh floors; creation of two additional basement storeys; partial demolition & reconstruction of central wing; demolition & reconstruction of Triangular Courtyard facades incorporating extensions at ground to fourth floors; external alterations to Quadrangle facades including new pedestrian entrances; landscaping to Quadrangle & Triangular Courtyards; creation of external terraces at fourth, fifth, sixth & seventh floors; entrance canopies; public realm works including alterations to security walls & bollards; removal & replacement of street trees; all in connection with use as hotel comprising up to 125 hotel bedrooms/suites with flexible hotel/retail/restaurant/bar use at part ground floor, flexible hotel/restaurant use at part lower ground, part ground & part second floors; flexible hotel/bar use at part fifth & part sixth floors; flexible retail, leisure, restaurant or bar use at part ground floor, leisure/spa facilities within the basement levels & part lower ground floor ancillary ballroom, event space & meeting rooms, food & beverage facilities, back of house facilities; car, cycle parking & servicing facilities; and up to 88 residential dwellings with ancillary communal amenities, car, cycle parking & servicing; namely, amendments to the Quadrangle courtyard paving, amendments to internal layout of two residential units; installation of additional windows to fifth floor; installation of external grilles to the east and north elevations and submission of details reserved by Condition 13 (vi) (internal finishes, including vehicle and service areas) and 19 (h) (stonework and ironwork gate details).

Variation of condition 1 of listed building consent dated 5 March 2020 (RN 19/00530/LBC) for the 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; amalgamation of the two buildings to provide new office (Class B1), retail (Class A1), restaurant (Class A3), flexible office / retail (Class B1 / A1), and residential accommodation (Class C3); and other associated works from RN 19/00530/LBC, NAMELY, to include the following changes: amend the design of the shopfronts and ground floor level entrances, rearrangement of reception spaces, alteration to lift overrun and Nuffield house roof massing and window replacement.

Variation of condition 1 and removal of conditions 9 and 10 of listed building consent dated 12 December 2018 (RN 18/08719/LBC ) for 'Alterations and extensions to 32 Belgrave Square and redevelopment of 25/27 Belgrave Mews South behind retained facade including new link extension between the mews house and main building, fourth floor infill extension, new mechanical plant and rooflights, and associated alterations, in connection with enlargement of single family dwellinghouse and erection of an Orangery extension beyond rear wing at ground floor level (site includes 32 Belgrave Square and 25/27 Belgrave Mews South)'. Namely, to vary the approved drawings to allow minor amendments to layout throughout the main house (inc. modern studwork to side of lift landing doors to be removed at all levels to facilitate the installation of the consented lift, adding electric blinds and / or secondary glazing to windows and lower ground floor, second, third and fourth floors, alterations to the ceiling in the first floor principal rooms, amendments to back staircase at first, lower ground and basement levels, reconfiguring of the layout of the spa area at lower ground level, adding a walk-in refrigerator within the household kitchen at lower ground floor level, minor amendments to orangery detailed design, alterations to the chimney pots on the Party Wall with 31 Belgrave Square, floor finishes changes at basement, lower ground, ground, first and second floor levels, fan coil unit locations updated, minor interior design amendments at lower ground, ground, first, second, third and fourth floors, and fireplace minor amendments (slips, grates etc.); alterations to fourth floor terrace including raising height of trellis; and internal alterations to the mews house.