Variation of Condition 1 of planning permission dated 19th April 2023 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY to install additional plant at rear first floor level and amend the approved enclosure, decorative cladding and green wall. (Application under Section 73 of the Act).

Non-material amendment to planning permission ref: 2021/04138/FUL granted 31st May 2022. Amendments to remove specific reference to the number of bedrooms of the approved residential units; alterations to the design of 1no rooflight above the roof of ground floor back addition; replacement of 1no window to the rear elevation and sliding doors to the rear side back addition of basement floor with new bi-folding doors. The new description would read 'Change of use of part of ground floor and basement from retail (Class E) into 1no. self-contained flat (Class C3); erection of rear extensions at third floor (pod) and first floor levels in connection with the conversion of first, second and third floor level into 2no. self-contained flats; installation of 3no rooflights in the front roofslope and 1no rooflight above the main flat roof at roof level; replacement of existing windows with new windows to the side and rear of first and second floor back additions; replacement of existing dormer window with a new dormer window in the rear roofslope; alterations and increasing the roof of second floor rear back addition; formation of a replacement roof terrace at first floor level to the rear elevation; demolition of part of ground floor and basement floor level including the installation of new window openings and formation of a central courtyard at ground floor level, installation of glazed doors and a window at basement level; alterations to the roof of ground floor rear back addition to include the installation of 3no rooflights; installation of screening fence at ground floor level to the rear elevation.'

Variation of Conditions 1 'Approved Plans' of planning permission ref. no. 22/AP/1797: Minor Material Amendment for full planning permission 20/AP/1119 dated 11/06/2020 for Conversion of the existing first and second upper floors to 2 x 3 bedroom residential self-contained flats with associated refuse storage and the erection of a rooftop extension to form additional 1 x 1 bedroom flat: - Square off the diagonal corner to the front elevation; - Extend the proposed structure to the rear by 0.48m; - Increase the internal floor to ceiling height by way of raising the structure's height; - Internal reconfiguration to provide x1 additional bedroom - Re-organisation of front and side elevation to correspond with internal reconfiguration. Proposed s73 amendments include to: - Increase the height of the approved roof extension by 0.3m - Extend the footprint of 1m (width) x 4.5m (depth) to the northern elevation of the roof extension to utilise the existing staircase and internal reconfiguration; - Relocate the roof extension southwards by 0.3m with increases in depth and width from 13.8m to 14.5m and 5m to 5.8m respectively - Reorganise fenestrations to correspond with internal reconfiguration - Amend external material finishes from the aluminium framed glazing system and fibreglass resin roof to squared edge larch timber cladding, membrane roof and pine timber window frame

Non material amendment of planning permission ref. no. 20/AP/1119: Conversion of the existing first and second upper floors to 2 x 3 bedroom residential self-contained flats with associated refuse storage and the erection of a rooftop extension to form additional 1 x 1 bedroom flat. Proposed amendments include to: - Increase the height of the approved roof extension by 0.3m - Extend the footprint of 1m (width) x 4.5m (depth) to the northern elevation of the roof extension to utilise the existing staircase and internal reconfiguration; - Relocate the roof extension southwards by 0.3m with increases in depth and width from 13.8m to 14.5m and 5m to 5.8m respectively - Reorganise fenestrations to correspond with internal reconfiguration - Amend external material finishes from the aluminium framed glazing system and fibreglass resin roof to squared edge larch timber cladding, membrane roof and pine timber window frame

Application for a Non-Material Amendment following a grant of planning permission 20/02784/FUL (De-conversion of existing 2 flats into one self contained residential unit, involving the erection of a single storey rear extension at basement level, erection of a first floor rear extension. Alterations to existing cast iron railings to accommodate an access gate and cast iron staircase in front lightwell, repair work to existing external and internal fabric; replacement of existing roof finish from concrete tile to fibre cement slate; replacement of existing sash windows with double glazed timber sash windows) granted on 11.01.2021. Amendment sought: Addition of a retractable awning to flank wall of existing kitchen extension

Demolition of buildings including Sarah Witham Thompson, Gressingham and Melling Halls, Black Box Theatre, Old Dining Room and the Long Corridor and erection of a 4 storey Extra Care residential building (use class C3), partial demolition, conversion and change of use of the Art Studio from education facility (use class D1) to ancillary space associated with the Extra Care residential building and change of use and conversion of Barbon Hall and Hornby Hall from education facility (use class D1) to provide affordable residential apartments (use class C3) with associated landscaping, parking, access and service infrastructure (pursuant to the variation of conditions 2 and 26 on planning permission 20/00554/FUL to enlarge the building footprint, amend the site layout, fenestration and car parking (including reduction by one space) and addition of lift overruns and a safety railing to the roof on the extra care building and to update the Energy Statement)

Non-material amendment to planning permission ref: 2020/03456/FUL granted 31st March 2021 for the 'Erection of a rear extension at fourth floor level, on top of the existing back addition following the removal of existing roof terrace in connection with the conversion of third and fourth floor levels into 2 x 1 bedroom self-contained flats; replacement of existing windows with new double glazed timber sash windows at first, second, third and fourth floor levels; installation of a new shopfront and alterations to the front glazing to include the installation of a new residential entrance door; installation of new rooflights and 8no solar panels at main roof level.' Amendments to include re-location of the cycle storage and temporary bin store from the front of the property to the rear at ground floor level; alterations to the front glazing and to the rear elevation to include new doors to bin and cycle storage at ground floor level to the rear elevation.

Non Material amendment for planning application 20AP0433 dated 28/10/2020 for minor material amendment to planning permission 16/AP/4018 [Approval date: 15.11.2019] 'Redevelopment of the site to provide four buildings to deliver 168 residential dwellings (Class C3) and flexible retail floor space (247m2) of flexible A1/A3/A4; The works include the conversion and extension of Sumner House (Block A) from office use (Class B1-c to provide 44 no flats and 4 no townhouses and partial demolition of boundary wall; the erection of a part 4, part 6 storey block to provide 39 no flats on Sumner Avenue (Block B); part 4(Block B); a part four, part 6 storey building to provide 72 no flats on Jocelyn Street (Block C); and a four storey block providing 9 flats on Melon Road (Block D), with 247m2 of flexible A1/A3/A4 use at ground floor level together with car parking, hard and soft landscaping, and other associated works incidental to the development' consisting of: - One change to the design of Flaxyard Block B: - Switching the balcony/terrace balustrades from glass to solid panels; - Changes to the design of Flaxyard Block C, including: - Enlargement of building footprint on floors 04 to 05; - Small number of fenestration changes; - Reduction in size of the external cycle store, but with a separate supplementary store to now be provided; - Changes to the design of Flaxyard Block D, including: - Enlargement of building footprint on floors 01 to 03; - Reduction of floorspace of the commercial unit from 247m2 to 224.5m2; - External door changes; - Changes to landscaping and car parking arrangements. The amendment are for change of Energy Strategy from CHP to ASHPs with associated plant room and roof top plant Removal of 9 dwellings from M4(2b) classification in Condition 12

Variation of condition 2 and 3 of planning permission ref: 2020/01249/FUL granted 16th October 2020 for the 'Erection of a hip to gable end roof extension; lowering the ridge height of the main roof and erection of an additional floor at roof level; raising of the front and rear parapet walls; alterations to the first floor roof of back addition to include the installation of new rooflights; alterations to the front fenestration to include the installation of new windows at first floor level, new windows and doors at ground floor level to replace the existing doors and windows; alterations to the rear fenestration to include installation of new windows to replace the existing windows at ground floor level; removal of existing windows at first floor level to the rear elevation; lowering of internal floor level and change of use from office (Class B1) into residential (Class C3) in connection with the conversion into 2 x 2 bedroom self-contained flats.' Amendments to facade treatment from approved render finish at the front elevation and approved white painted brickwork finish at the rear elevation with London Yellow Stock brickwork, omission of 2no window at first floor level to the front elevation, internal configuration of staircase and landing area, alterations to the windows at the front and elevation, alterations to the doors at the front elevation and amendment to the rear mansard roof from flat roof to pitched roof.

Amendments to planning permission dated 20 June 2016 (RN: 15/10444) for: Variation of Condition 1 of planning permission dated 8 December 2011 (RN10/01741/FULL) for development of 55-91 Knightsbridge (including retention of Knightsbridge and William Place facades) to provide retail (Class A1) at basement and ground floor levels, office ( Class B1) at part ground, first, and second floor levels and residential flats at part ground, part first,part 2nd and 3rd to 5th floor levels. Off street servicing and new sub basement car park. Removal and replacement of existing tree on William Street. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Restoration and repair of external facades and roofs to 3-7 William Street including reinstatement of original roof profile at 4 William Street, conversion of 1st to 3rd floor levels of 3 and 4 William Street for residential purposes ( Class C3). Namely, the substitution of new drawings to allow minor material amendments comprising a revised number and mix of residential units; the provision of a terrace for a residential unit on the western end of the building; erection of a lift shaft to the rear of 4 William Street; alterations to shopfront of Nos. 3 - 4 William Street; extension at 4th floor level to the rear of Knightsbridge; and reconfiguration of the fenestration. Namely, amendment to the external air vent at 4 William Street.