Non material amendment of planning permission ref. no. 22/AP/3723: Variation of Conditions 1, 5 and 6 of planning permission ref. 17/AP/4283 (Part demolition of existing building and erection of a six storey extension with basement, comprising office floorspace (Use Class E(g)) and ancillary cafe; part replacement facade and minor elevational changes to existing building and other associated development including landscape/surfacing alterations). The proposed amendments include: changes to ground floor entrance to match ground floor openings on south elevation, fifth floor extension to commercial floor space and terrace, reduced height of brick parapet and replacement with balustrade on south elevation fifth floor and fifth floor mezzanine, re-location of biodiverse green roof and increased provision of green roof from 58sqm to 170sqm, revised layout of PV roof panels, revised roof light design, replacement of precast concrete lintels with metal lintels on north and south elevation, and revised design of external escape staircase design on west elevation. NMA sought: Non-material amendments for the removal of the existing Portico and rebuild a new Portico at a higher position to match the existing

Non-material amendment to planning permission reference: 2021/01617/VAR dated 27th July 2021 for the "Change of use from a youth club to a mixed use development of classes B1(a) and C3(a) creating 2no. new office spaces and 3no. new dwellinghouses; demolition of existing lean-to extensions; partial demolition of external walls; reinstatement of original window openings; erection of new single storey side extensions; erection of metal clad dormer extensions and installation new rooflights in the existing roof." Amendment sought to condition no. 14 with the relocation of the Air Source Heat Pump for Residential Unit 2 from the office bin store to the rear garden of Unit 2.

Non-material amendment to planning permission ref: 2015/04542/FUL granted 22nd February 2017 for the 'Erection of a terrace of 4 x three-storey houses plus basement; alterations to the existing self-storage facility by the erection of extensions at ground, first and second floors to the southern elevation for Class B1 (office) use at ground floor and additional Class B8 (self-storage) space at first and second floors, erection of an infill extension on the northern elevation at second and third floor level, and the erection of an additional floor at roof level; erection of a replacement single storey electricity sub-station (south east corner of site); reconfiguration of vehicular access/egress to enter site via Effie Road and exit via Argon Mews, and associated car parking and landscaping.' Amendment to the wording of description of development to read as follows: 'Erection of a terrace of 4 x three-storey houses plus basement; alterations to the existing self-storage facility by the erection of extensions at ground, first and second floors to the southern elevation for Class E(g)(i) (Office) use and additional Class B8 (self-storage) space, erection of an infill extension on the northern elevation at second and third floor level, and the erection of an additional floor at roof level; erection of a replacement single storey electricity sub-station (south east corner) of site); reconfiguration of vehicular access/egress to enter site via Effie Road and exit via Argon Mews, and associated car parking and landscaping.'

Variation of condition 4 (Building shall be used only for purposes within Use Class B1) of planning permission ref: 15/06840/FUL (Retention of third floor extension and 2 no. balconies and terrace on south elevation; retention of 4 no. balconies on east elevation at second floor level; retention of metal window in north elevation; retention of roof level access structure; and, erection of cycle and waste storage enclosures) granted on 29/01/2016. Variation sought : amend condition 4 to read to read as follows: Notwithstanding the provisions of the Town and Country Planning (General Permitted Development) (England) Order 2015 (or any order revoking and re-enacting that Order with or without modification), the development hereby permitted shall be used only for purposes within Use Class B1 offices.

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.

Non-material amendment to 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 the description of development to read as follows: 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 dwellinghouses.