Variation of condition 1 of listed building consent dated 09 October 2020 (RN: 20/05058/LBC) for the: Variation of Condition 1 of the listed building consent dated 23rd July 2019 (RN: 19/04368/LBC) for 'Internal and external alterations including erection of rear extension at ground floor level, swimming pool at lower ground floor level, alterations to rear courtyard in connection with use as a single family dwelling house. Namely, to allow the installation of external lighting to the ground floor front entrance and the first floor balconies, installation of crossbars at high-level below the rooflight in the main stairwell to hang two chandeliers, repairs and alterations to the existing fireplaces and hearths, and installation of supplementary mechanical ventilation to part of second and third floor levels.

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 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 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 of listed building consent dated 11 February 2020 (RN:19/07253/LBC) for: Alterations in connection with the reversion of the building to use as a single family dwelling, including removal of and rebuilding rear stable block, extension to main house and formation of basement and sub-basement levels; removal of garage building and erection of a replacement garage/ sub-station building; raising mansard roof trusses; and associated internal alterations, landscaping and associated works. NAMELY, to allow alterations to 1st floor balcony, to the outdoor kitchen and plant store room/store roof from green roof to terrace with pergola roof. (Linked with 21/04522/NMA)

Variation of condition 1 of listed building consent dated 11 February 2020 (RN:19/07253/LBC) for: Alterations in connection with the reversion of the building to use as a single family dwelling, including removal of and rebuilding rear stable block, extension to main house and formation of basement and sub-basement levels; removal of garage building and erection of a replacement garage/ sub-station building; raising mansard roof trusses; and associated internal alterations, landscaping and associated works. NAMELY, to allow new Yoga Room at 1st floor green roof area and the enhancement of the green roof planting adjacent to Peninsula Hotel. (Linked with 21/04521/NMA)

Variation of condition 1 of the listed building consent dated 21 October 2016 (RN 16/07747/LBC) for the installation of facade mounted lighting to Departures Road, architectural uplighting to Paxton Canopy, architectural uplighting to Macmillan House facade, replacement of access hatch to beer cellar, alterations to cast iron rainwater downpipes and replacement plinth. NAMELY, to vary the approved drawing numbers to propose new render at new height to protect historic brickwork from water and salt damage.

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.