Amendments to planning permission dated 1st June 2022 (RN:22/02572/FULL) for Installation of two new rooflights to rear roof slope, in association with loft conversion. Namely, to replace windows to front and rear at first floor level with slimline double glazing.

Amendments to planning permission dated 19 April 2021 (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, consisting of the provision of new door height railing gates to the main entrance, new openable railing gates to the eastern side of the main entrance, and insertion of French doors to the eastern ground floor shopfront.

Amendments to planning permission dated 12th December 2022 (RN:22/03987/FULL) for the conversion of ground floor garage to habitable accommodation and erection of mansard extension for use in connection with the existing first floor flat (Unit 8); and extension to the rear first floor to existing flat, Unit 2 [Site includes rear of 25-27 Catherine Place] namely; to extend the width of the flat roof to the edge of the building.

Amendments to planning permission dated 05 March 2021 (RN: 20/08219/FULL) for 'Infill extensions at rear ground floor level, alterations to rear fenestration and new roof to rear extension, conversion of one former coal cellar in basement to habitable accommodation, internal alterations to rear extension, basement floors and associated works'. Namely, to alter design and material of rear patio doors.

Amendments to planning permission dated 29 March 2022 (RN: 21/08501/FULL) for alterations to provide inclusive access to the building, comprising installation of a platform lift to the main entrance. Creation of a terrace at roof level (to rear of building) and level access to the terrace. Alterations to the rear and mews facade; and alterations at lower ground floor associated with the conversion of the car park to office floorspace. NAMELY, to create two inverted dormer openings within the existing first floor mansard roof to the rear of the building to house louvred vents.

Amendments to planning permission dated 07th April 2021 (RN:21/00366/FULL) for Removal of condition 12 of planning permission dated 01 May 2020 (RN: 20/01459) which itself varied condition 1 of planning permission dated 12 February 2013 (RN: 12/12483)for the: internal and external alterations (comprising new windows at roof level, lift overrun green roof skylight, removal of lightwell insertion of new doors at lower ground floor level and creation of roof terrace at rear ground floor level) in connection with the conversion of the existing building from office and residential flats into a single family dwelling to vary the approved drawing numbers to allow the introduction of an additional roof light to the north east of the roof, a replacement walk on roof light to the west of the roof and an extension to the lift overrun box, set into the existing area of flat roof and plant access. Namely, the lift over run box is to be in toughened clear glass.

Amendments to planning permission dated 23 November 2020 (RN: 20/05405/FULL) for the: Erection of single storey rear infill extension, and installation of two rooflights to rear roofslope in connection with the loft conversion. NAMELY, to allow the replacement of the existing timber sash windows with double glazed timber windows with glazing bars to match the existing, and replace the roof tiles to match the existing.

Amendments to planning permission dated 5th March 2021 (RN 20/08219/FULL) for the Infill extensions at rear ground floor level, alterations to rear fenestration and new roof to rear extension and conversion of one former coal cellar in basement to habitable accommodation. NAMELY, amendment to allow dropping floor level in coal cellars to allow usage as bathroom and storage as proposed, new doorway to allow access into closed-off second cellar.

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.

Amendment to planning permission dated 20 June 2016 (RN:15/10444/FULL) for the variation of Condition 1 of planning permission dated 8 December 2011 (RN:10/01741/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, variation of Condition 17 with substitution of a revised Energy Strategy.