Variation of condition 1 of planning permission dated 01 March 2012 (RN:11/11498/FULL) for use of part ground and upper floors as a single dwelling house (Class C3). Demolition of part of the existing two storey rear extension at ground and first floor level to create an open patio area. Construction of rear extension at second floor level. Removal of part of the existing roof and attic space to create a roof terrace and rooflight and screen to front elevation. Alterations to front and rear elevation windows and doors. NAMELY, repositioning of metal balustrade and extension of flank parapet wall.

Amendments to planning permission dated 01 March 2012 (RN:11/11498/FULL) for use of part ground and upper floors as a single dwelling house (Class C3). Demolition of part of the existing two storey rear extension at ground and first floor level to create an open patio area. Construction of rear extension at second floor level. Removal of part of the existing roof and attic space to create a roof terrace and rooflight and screen to front elevation. Alterations to front and rear elevation windows and doors. Namely, repositioning balustrade and flank wall extended.

Amendments to planning permission dated 26 July 2019 (RN:19/03428/FULL) for the demolition of existing dwellinghouse and erection of new four storey dwellinghouse (Class C3) comprising a basement floor extending under part of the front and rear gardens, ground and two upper floors, and associated external alterations, including replacement of front boundary wall. Namely, minor repositioning of windows; repositioning of the side entrance door and change to style of door; Dormer window sizes reduced; Rear ground floor doors combined with windows and brick piers removed; Design of front portico simplified to be more in keeping with the house; Parapet detail amended; Alterations to chimney, height and capping; Reduction in size of rooflights to ground floor single storey rooms; Splitting up of the rooftop courtyard glazing; Alteration to basement lightwell configuration; Glazed metal door and security gates added and lowering of basement window cills; 5mm increase in height to a side extension; change in eaves height to main roof.

Amendments to planning permission dated 15th December 2021 (RN:20/03623/FULL) for amalgamation of two maisonettes to create a single dwelling house [Class C3], excavation beneath the footprint of the existing building and excavation of part of rear garden at lower ground floor level. Demolition of the existing extension to the rear and construction of a new lower ground and ground floor rear extension. Repair work to the facade, alteration to street frontage in line with the street and landscaping to the rear garden. Installation of acoustically attenuated condenser to the rear garden. Namely, to amend the wording of Condition 16 (Contaminated Land) to allow radon monitoring to occur 'after' occupation.

Variation of Condition 16, Phase (4) of planning permission dated 15 December 2021 (RN 20/03623/FULL) for the amalgamation of two maisonettes to create a single dwelling house [Class C3], excavation beneath the footprint of the existing building and excavation of part of rear garden at lower ground floor level. Demolition of the existing extension to the rear and construction of a new lower ground and ground floor rear extension. Repair work to the facade, alteration to street frontage in line with the street and landscaping to the rear garden. Installation of acoustically attenuated condenser to the rear garden. NAMELY, removal of Phase 4 part of condition 16 entirely and / or varied to allow for report provided with this application to be acceptable to discharge the condition.

Variation of condition 1 of planning permission dated 08 March 2021 (RN: 20/03732/FULL) for the: Single storey rear extension with external landscaping following demolition of existing side and rear additions; Rear extension to existing flat-roofed North East Bay; New metal fence and Entrance gate; Rear skylight to replace existing, plant, all in connection with use as single dwellinghouse. NAMELY, alteration to, and introduction of windows and doors; replacement of existing timber side entrance to be rendered to match the main house; metal railings to the front elevation; traditional cast iron railings to rear elevation; soil vent pipes to rear and side elevations; ridge tiles to the south east bay; and retention of the flank wall in yellow stock brick instead of the approved rendering.

Extensions and alterations in connection with the conversion of single family dwelling house to 3 flats; including demolition of ground floor rear projection part upper projection and boundary wall, new full width ground floor extension with rooflights.

Amendments to planning permission dated 8 August 2018 (RN:18/03076/FULL) for the: Excavation to extend the lower ground floor and increase floor-to-ceiling height, demolition of existing conservatory and erection of extension to side elevation, and erection of infill extension to rear elevation at lower ground floor level all to enlarge dwellinghouse (Class C3). Alterations to rear elevation including infilling existing window and creation of 3no. new windows at second, third and fourth floor level. Removal of existing tree to front boundary. Installation of mechanical plant to fourth floor roof terrace, all in connection with the existing single family dwelling (Class C3). NAMELY, to allow increasing the height of the three new front ground floor windows of the new extension car park side of the house and to the ground floor level window, configuration to the rear elevation and retention of existing brickwork.

Variation of condition 8 of listed building consent dated 12 April 2018 (RN:17/09924/LBC) for the: Use of 8 Grosvenor Square and 1a and 2 Duke's Yard as a single family dwelling with rear extensions to 8 Grosvenor Square at second to fourth floor levels; infilling of east lightwell and creation of terrace at third floor level; new plant room at roof level. Demolition of ground and first floor rear extension to 1a and 2 Duke's Yard and replacement with new building on sub-basement, basement and ground floors with extended garden terrace to main house over. Use of 1 Duke's Yard as a single family dwelling. Associated internal and external alterations to all buildings. [Site includes Nos.1, 1a and 2 Duke's Yard]. NAMELY, to allow alterations to the roof plant ductwork, attenuator and air intake/exhaust; amendment to flue; introduction of hoop iron and lanterns to railings at Brook Street elevation; amended CCTV positions at Brook Street Elevation & Courtyard East Elevations; and internal amendments to the swimming pool, garages and stairs. (S19 application).

Variation of condition 1 of planning permission dated 12 April 2018 (RN:17/09922/FULL) for: Variation of condition 2 of planning permission dated 11 September 2015 (RN 15/03469/FULL) for "Use of 8 Grosvenor Square and 1a and 2 Duke's Yard as a single family dwelling with rear extensions to 8 Grosvenor Square at second to fourth floor levels; infilling of east lightwell and creation of terrace at third floor level; new plant room at roof level. Demolition of ground and first floor rear extension to 1a and 2 Duke's Yard and replacement with new building on sub-basement, basement and ground floors with extended garden terrace to the main house over. Use of 1 Duke's Yard as a single family dwelling. Associated internal and external alterations to all buildings. NAMELY, to allow alterations to the roof plant ductwork, attenuator and air intake/exhaust; amendment to flue; introduction of hoop iron and lanterns to railings at Brook Street elevation; amended CCTV positions at Brook Street Elevation & Courtyard East Elevations; and internal amendments to the swimming pool, garages and stairs. (S73 application).