Variation of condtion 1 of planning permision dated 28 October 2021 (RN: 21/06105/FULL) for the: Use of ground and lower ground floor in connection with residential flat above; construction of a mansard with roof terrace; lower ground rear extension; a front lightwell extension and new railings; replacement of the non-original first floor external balustrade and fenestration alterations. NAMELY, to allow replacement of the existing piers and modern metal railing at first floor level with new traditional black painted metal railing; and raising the cill heights of the approved painted timber sash windows at the lower ground floor street facing facades by 150mm.

Amendments to planning permission dated 30 March 2022 (21/07642/FULL) for the variation of Conditions 1, 20, 21, 23, 24 of planning permission dated 16th March 2021 (RN 20/04933/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace; NAMELY, Street scape enhancements (Front elevation - Carlton House Terrace and Facade realignment); Amenity enhancements (Inclusion of glazed doors to external terraces (west elevation), external terraces and Level 10 Roof Access) and Detailed design and technical amendments (Widening of the central 'core strip' and Balustrade Position at level 10).

Construction of a side extension at all levels, alteration of existing openings at side elevations lower levels; modification to third floor front, rear and side facades and fenestrations, using double-glazed timber framed sash windows to match existing; and replacement of windows with double glazed timber framed sash windows throughout.

Demolition of existing single storey garage attached to the side of the property and construction of a single storey extension with larger footprint. Alterations to a window and door.

External and internal alterations including replacement windows, removal of roof and water tank, construction of new roof with rooflights and sunken roof terrace accessed via a lightwell formed within the existing building footprint, replacement windows and security gates , anti bird wire, repair work to facades, internal alterations to all floors, all in connection with enlarging existing flat. (Linked to 22/01260/LBC)

External and internal alterations including replacement windows, removal of roof and water tank, construction of new roof with rooflights and sunken roof terrace accessed via a lightwell formed within the existing building footprint, replacement windows and security gates , anti bird wire, repair work to facades, internal alterations to all floors, all in connection with enlarging existing flat. (Linked to 22/01117/FULL)

Details of Appendix A checklist (construction phase) of the Code of Construction Practice, written and photographic schedule of the materials, detailed drawings of typical bay studies, new windows, new external doors, new/ altered shopfronts and details of an alteration to include windows at high level in the brick stair enclosure, pursuant to conditions 3, 5, 6 and 33 of planning permission dated 27 July 2021 (21/03134/FULL).

Variation of Conditions 1, 20, 21, 23, 24 of planning permission dated 16th March 2021 (RN 20/04933/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; namely, amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace.

Construction of a rear infill extension to existing ground floor projection, alterations to existing ground floor extension including louvres above roof glazing extension, changes to garden elevation of garage; installation of rooflights and dormer windows to roof level to allow for additional living accomodation; installation of additional windows to ground and 1st floor side and rear elevations.

Variation of Conditions 1 and 10 and removal of Conditions 8 and 9 of planning permission dated 26th September 2016 (RN: 15/05936/FULL) for the: demolition of existing office building and redevelopment to provide a replacement building over two basement levels, lower ground, ground and eight upper levels. Use of the building for residential purposes (Class C3) providing a maximum of 23 flats including 14 car parking spaces at basement level, accessed from Buckingham Gate. Namely, to extend the internal usable space at basement level 2 and reconfiguration of basement 1 without increasing the approved extent of foundations, internal alterations, amendments to window layouts at levels 7 and 8; and to vary the wording of Condition 10 to approve updated Sustainability and Energy Strategy and remove Conditions 8 (uninterrupted demolition and construction) and 9 (installation of PV panels on roof).