Demolition of existing conservatory and construction of replacement dining / garden room. Internal and external alterations consisting of blocking door, creation of new rear door and insertion of rooflight. Removal of eastern boundary hedge and erection of timber fence. Installation of timber trellis atop the existing southern boundary fence. Removal of existing tree.

Amendments to planning permission dated 18th February 2021 (RN:20/06601/FULL) for Variation of condition 1 of planning permission dated 21.5.20 (RN:19/07406/FULL), which itself varied condition 1 and 9 of planning permission dated 20.11.18 (RN: 18/03520/FULL) which itself varied condition 1 of planning permission dated 12 September 2017 (RN: 16/06423/FULL) for, 'Alterations to the existing building including retention & repair of the front and side facades, part demolition & replacement of the rear facade, rear extension of the 2nd-5th floors, removal of existing & introduction of a new 6th floor, introduction of a new set-back 7th floor, extension of the existing basement levels to include two additional basement levels (including one mezzanine level), installation of roof plant & plant screen, public realm works including hard & soft landscaping, removal of the security kiosks, fencing, bollards & gates/barriers to Blackburne's Mews & Culross Street, removal & replacement of 6 No. trees in front of the Grosvenor Square elevation & re-opening of the road on the western side of the Square, all in connection with the use of the building as a hotel (Class C1) with flexible retail/restaurant use at 1st floor, ground floor and basement 1 (Class A1/Class A3/Class C1), flexible restaurant/bar use at 7th floor (Class A3/Class A4/Class C1), leisure/spa facilities within the basement (Class D2/Class C1) & an ancillary ballroom, event spaces, back of house facilities & associated car, cycle parking & servicing facilities accessed from Blackburne's Mews, & other associated works' - NAMELY, to amend Condition 17 to remove reference to the seventh-floor level [requiring public access] and an additional condition to read as follows: The area at seventh floor level designated as a restaurant/bar (Flexible Class A3/A4/C1) must remain open to members of the general public (whether or not they are guests at the hotel or visitors of hotel guests) on not less than 200 days per year

Discharge of condition 3 (render and brickwork details) and 5 (protective fencing to trees) of application number 21/00558/HHA (Demolition of existing garage, construction of part two storey part single storey front extension, part two part single storey side extension and single storey rear extension as well as external material alterations).

Details of conditions 3 (materials and finishes), 4 (landscaping), 5 (refuse and recycling storage), 7 (parking visibility splays), 8 (bicycle storage) 9 (parking layout), 10 (drainage), 13 (tree fencing), 14 (site levels) pursuant to planning permission ref 19/00277/FUL for demolition of existing garage, alteration of ground level and construction of 1 x 3 bedroom dwelling, provision of associated parking and amenity space.

Single storey side extension (north side), demolition of bay window to be replaced with wrap around single story porch/side extension (south side), addition of barn hip, changes to the openings on all elevations and internal alterations. Widening of pedestrian entrance to allow for cars, permeable hard standing added to allow for parking on south side of site, removal of trees along boundary and addition of 1.8m high fence to secure garden. As amended on 15/06/2021 and on 28/07/2021