Amendments to planning permission dated 4th January 2021 (RN: 20/04646/FULL) for Excavation of a single storey basement; insertion of a lightwell to ground floor level within the existing building; alterations to rear elevation including infill of existing lightwell at first floor level; terrace at second floor level with associated screening; insertion of window and door at second floor level; insertion and reconfiguration of roof level rooflights; and conversion of garage to habitable space namely, to reduce size and quantity of roof lights.

Amendments to planning permission dated 29th July 2014 (RN 13/09737/FULL) for the demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards. Namely, alterations to internal layout, provision of new window, changes to roof level terrace, balustrading and arrangement of planters, provision of new guarding and access gate at level 09, openable windows, internal works, alterations to roof screen, new smoke shaft to north east corner, new smoke extract at level 09 and new fixings for maintenance purposes.

Amendments to planning permission dated 02 May 2019 (RN:19/00818/FULL) for the: Conversion to 3 x 2 bedroom flats and 1 x 1 bedroom flat and the installation of double glazed timber windows to No. 50 Warrington Crescent. Namely, to allow the introduction of 4 new double-glazed flush-framed skylights to the existing flat area of the roof.

Amendments to planning permission dated 17th August 2020 (RN 19/07344/FULL) for the demolition of existing rear extension, excavation of basement under property including front lightwell and vault, erection of a basement and ground floor rear extension, alterations to the ground floor front elevation in connection with conversion of property into one 3 bed unit and one 2 bed unit. Namely, alterations to rear yard elevation to replace three windows with French doors at ground floor level, with juliet balconies and white painted render treatment to the ground and basement level walls.

Amendments to planning permission dated 17 August 2020 (RN: 19/07344/FULL) for the: Demolition of existing rear extension, excavation of basement under property including front lightwell and vault, erection of a basement and ground floor rear extension, alterations to the ground floor front elevation in connection with conversion of property into one 3 bed unit and one 2 bed unit. Namely, to allow changes to the rear yard windows and doors.

Amendments to planning permission dated 21 July 2020 (RN: 20/02540/FULL) for the: Construction of extensions at rear lower ground floor level and conversion of vaults into habitable accommodation; installation of railings to the boundary wall, replacement of steps from lower ground to pavement level, in connection with enlargement of lower ground floor flat namely, to allow revised roof and stair/railing design, omission of lower ground floor infill rear extension, and fenestration alterations.

Amendments to planning permission dated 29 July 2014 (RN: 13/09737) for Demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards; Namely, the introduction of a winter garden at ninth floor; amending existing double glazed semi-circular windows to Crittall double glazed; the addition of decorative grilles in north core; additional lights; new double glazed Crittall doors to third floor Juliet balconies; minor amendments to layouts; removal of rooflght to south core and new balustrades to north core balustrades and sixth floor colonnade, alterations at roof level and other external changes.

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.

Amendments to planning permission dated 12 March 2019 (RN:19/00660/FULL) for Conversion of garage into habitable space and replacement of external windows and doors to front elevation. NAMELY, replace the existing casement windows with triple-glazed wood-framed, painted casement windows, change the design of the faux garage doors and windows, convert the garage into a bedroom and bathroom and open out the existing kitchen and living room area.

Amendments to planning permission dated 14 June 2019 (RN: 19/00941/FULL) for the: Relocation of plant equipment to existing roof, conversion of plant room to office floorspace, creation of roof terrace at 4th floor with new access door and associated works. Namely to remove part 3 of condition 8 which required detailed drawings at 1:10 with full size moulding details of the new front basement window to be approved and works to be caried out in accordance with the approved details, allow the installation of air conditioning units at roof level and refurbishment of the front basement window.