Change of use of the rear parts of lower ground and basement floor levels from retail (Class E) into a residential unit (Class C3) and conversion of the existing maisonette into 3no. self-contained flats, comprising of 2 x 1 bedroom, 1 x 2 bedroom and 1 x 3 bedroom self-contained flats; erection of a rear roof extension; erection of a rear extension at second floor level over part of the existing back addition; erection of a single storey rear extension at lower ground floor level to the side of the existing back addition; installation of 2no. rooflights in the front roofslope; re-sizing and replacement of 2no. windows to the rear elevation at upper ground floor level; removal of an existing window to the side elevation at upper ground floor level; alterations to the rear elevation at lower ground floor level to include, installation of new bi-folding doors following the demolition of external structure and the removal of existing window; erection of bike and bin stores in the rear garden.

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.'

Works at 89 Boundary Road to include use of part lower ground and part ground floors as a residential flat (Class C3) and office (Class E), and first, second and third floor as 2 residential flats (Class C3); Erection of rear extensions at lower ground and ground floor levels with associated terrace at first floor level; Erection of mansard roof extension, alterations to windows and doors; and works to 87 Boundary Road to include demolition of existing rear extension and erection of mews house at rear of site, reduced office space; erection of a mansard roof; Conversion of maisonette at first and second floor into two flats with additional accommodation at roof level; and use of the lower ground and ground floor as office (Class E).

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.

Change of use of part of the ground floor from retail shop (Use Class A1) into a large HMO (Class Sui Generis), excavation of a new basement including the formation of a new lightwell in connection with the conversion of part of the ground floor to use as a large HMO to accommodate up to 10 residents; change of use of the first and second floor level from dental surgery (Class D1) into residential (Class C3), partial demolition of the existing building and erection of rear extensions at ground, first and second floor level in connection with the creation of 7 self-contained flats (1 x studio, 5 x 1 bedroom and 1 x 3 bedroom flat) over first and second floor level; alterations to external facades to include the installation of new windows and door openings; alterations to the shopfront; erection of new boundary walls; formation of roof terrace at second floor level; provision of new cycle and bin stores.