Variation of Condition 1 of planning permision dated 16 October 2023 (RN: 23/05842/FULL), which itself varied planning permission dated 22 December 2022 (RN: 22/06621/FULL) for: Reconfiguration of two residential units to form one unit within Nos. 25, 26 and 48; and new residential unit within No. 49; installation of four condenser units, two on each of the roofs of Nos. 25 and 26; and extension at rear third and fourth floor level of No. 25 and associated works (site includes 25-26 Chester Square and 49-48 Eaton Mews South). NAMLEY, to allow works to front lower ground floor including new York stone paving to lightwell with single step below external staircase, new timber sash window with sidelights, new security railings to both windows in lightwell at no. 25, to match no. 26 existing railings; new York stone paving at no. 26, lightwell, and new Portland stone to both no. 25 and no. 26; rear elevation works include new glazing and glazing bar layout to external door to rear elevation, omit proposed screen between 25 and 26 terraces, new metal railings to coping at no. 25 terrace, and new double dormer; new front door, garage gate and associated fanlights at no. 48.

Variation of conditions 1 (approved plans), 4, 7 and 11 of planning permission dated 10th June 2022 (RN:21/07603/FULL) for the Excavation of basement beneath footprint of building and new side extension, replacement side extension at increased height plus addition of window and balcony, erection of new single storey side extension, replacement doors to rear and creation of window to side (north side), infill extension in part of front lightwell and installation of external stair in front lightwell, installation of plant equipment in front lightwell and rear garden and associated alterations. Namely, flank (south) window added; Steps incorporated to side passage (south elevation); Chimney added to north elevation; Formation of skylight; Previously approved rear balcony omitted and replaced with Juliet balcony; Basement footprint enlarged to north elevation; Lower ground floor extended at north-east corner to provide stair to basement: Front driveway level adjusted to align with garage; and access to rear garden from rear elevation revised.

Variation of Condition 1 of planning permission dated 12 December 2022 (RN: 22/03987/FULL) for 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 at Unit 2 to the parapet edge, aligning the roof line.

Variation of Condition 1 of planning permission dated 11th February 2020 (RN:19/07252/FULL) for: Alterations in connection with the reversion of the building to use as a single family dwelling, including removal of and rebuilding rear stable block, extension to main house and formation of basement and sub-basement levels; removal of garage building and erection of a replacement garage/ sub-station building; raising mansard roof trusses; and associated internal alterations, landscaping and associated works NAMELY, to allow new external security cameras. (linked to 22/08560/LBC)

Variation of conditions 5 (facing materials), 6 (details of pier to front boundary), 9 (privacy screen to 1st floor),11 (planting scheme) of planning permission dated 14th May 2019 (RN 18/04625/FULL) for the Excavation of basement floor below existing house and front garden with associated front lightwell; demolition of existing front garage and replacement front boundary; replacement of existing three storey wing with enlarged three storey side extension; replacement of existing ground and first floor rear extensions with new extensions at ground and first floor, with a terrace at rear first floor level with 1.8m high privacy screen and addition of railings to rear elevation at first floor level. NAMELY, to amend conditions to compliance conditions, given works have begun on site and details have been approved under approval of details applications.

Variation of condition 1 of planning permission dated 21 April 2022 (RN:21/08681/FULL) for erection of an extension at roof level to provide access to existing terrace, installation of timber screen, glass & steel balustrade at roof level, conversion of integral garage to habitable space and replacement of fenestration to front and rear elevations. Namely, proposed canopy over front door.

Variation of Conditions 1, 4 and 5 of planning permission dated 31st August 2021 (RN:21/00759/FULL) for the Demolition and redevelopment of an existing single family dwelling behind a retained and altered facade including a new second floor mansard roof extension namely, to amend the design of the garage doors to include a painted timber ventilation louvre panel and to approve all facing materials.

Variation of condition 1 of listed building consent dated 20th May 2021 (RN 20/08075/LBC ) for the enlargement of rear lightwells and erection of rear extensions at lower ground floor, use of garage as habitable accommodation and associated replacement of garage door with window, replacement windows in rear extension, replacement rooflights, removal of tree in front garden and associated landscaping as well as internal alterations across all levels. NAMELY, to make the existing rooflight over stairs central, new timber double glazed doors, new external door, new metal railings and new thin french aluminium doors within replacement glass structure. (Linked to 22/02324/FULL)

Variation of condition 1 of planning permission dated 20th May 2021 (RN 20/08074/FULL ) for the enlargement of rear lightwells and erection of rear extensions at lower ground floor, use of garage as habitable accommodation and associated replacement of garage door with window, replacement windows in rear extension, replacement rooflights, removal of tree in front garden and associated landscaping as well as internal alterations across all levels. NAMELY, amend the size and position of approved rear rooflight, amend the position of approved rear extension rooflight and infilling rear window opening (Linked to 22/02508/LBC)

Variation of condition 1 of planning permission dated 16th June 2021 (RN 21/02323/FULL) for the removal of rear pediment and erection of new bow fronted pediment and wall on west elevation. Extension to single storey garage and kitchen wings. Addition of lightwells to basement and garden room extension to basement west elevation. Alteration of existing rooflight to Octagonal rooflight. NAMELY, minor changes to the kitchen wing design.