Use of part of the lower ground floor for commercial purposes (Class E), infilling of lightwell windows at basement level and alterations to existing basement flat to create a one-bedroom residential unit.

Extension of L13 lift to provide equal access to L5 No. 90-93 Piccadilly and 42 Half Moon Street; extension of rear elevation No 90-93 Piccadilly to provide better internal circulation; new railings to all lower windows on the White Horse Street elevation; extension of gym to lower ground floor in lieu of function space; layout changes to residential units at Levels 2 and 3 No 90-93 Piccadilly and White Horse Street; new design and levels correction to front courtyard; new terrace to 42 Half Moon Street rear elevation in lieu of flat roof; new rectangular rooflight to No 94 Piccadilly in lieu of circular; and minor changes to internal layouts.

Internal alterations to the residential flat at fourth floor level to include replacement doors, installation of fire proofing measures to doors and floors and insulate the ceiling, dormers and floor void; and install secondary glazing to the windows.

Internal and external alterations including contemporary open structure on rear terrace; small glazed extension at fourth floor level; replacement of windows with double glazed units to match; enclosure of existing internal stair and installation of new internal stair; rationalisation of plant in roof valley and new plant screens; replacement rooflights; new internal residential fitout and associated works.

Lowering of part of the lower ground floor slab and excavation to provide a swimming pool to the lower ground floor; rebuilding and repair of part of the existing rear facade with new sash windows; first floor rear terrace; use of rear mews upper floors as a separate residential unit with new access from the side elevation; addition of roof lights to both the main house and mews house flat roofs; and associated external alterations and internal alterations including new lift. (Linked with 21/06200/FULL Revised Proposal)

Variation of condition 3, 8 of listed building consent dated 9th December 2021 (RN 20/02451/FULL) for the Installation of one wall mounted air-conditioning condenser unit within an acoustic enclosure to the rear of the property and associated internal alterations in connection with use as a residential dwelling. NAMELY, to make minor amendments to the size/location of approved fenestration on the front and rear elevation, rearrangement of approved roof lights at main roof level and relocation of air conditioning unit to the rear.

Variation of condition 1 of listed building consent dated 15 October 2019 (RN: 19/03380/LBC) for the: Ground floor alterations to shopfronts and car parking entrances on Great Titchfield Street and Winsley Street. NAMELY, to allow alterations to the detailed design of the shopfronts and the residential and office entrances on Great Titchfield Street and Winsley Street including replacement of dark bronze anodised aluminium façade panelling, window frames, doors, louvres, fire panel, entrance hall with dark burnished; bronze/bronze effect panelling; new mirror polished stainless steel residential entrance door and security side panel; replacement of back-lit UK House signage with dark burnished brass/bronze effect finish mounted on curtain wall transom; and additional louvre to Winsley Street facade. (Linked with 21/06119/FULL)

Variation of Condition 1 of listed building consent dated 19th July 2018 (RN: 18/02362/LBC) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY, (i) Amendments to the design of the main door of the residential entrance at the Baker Street front elevation; (ii) Amendment to the material finish of the residential entrance to the building at the Baker Street front elevation; (iii) Internal layout changes to 1st - 4th floor flats at 96-98 Baker Street; (iv) Reconfigured exhaust shaft for theatre at 1st floor terrace to the Baker Street rear elevation; (v) Modification to bedroom windows at the Baker Street rear elevation to accommodate exhaust shaft for theatre; (vi) Revised location of access hatch to roof; (vii) Reduced area for clerestory pop-up at Baker Street rear elevation; (viii) Addition of a guard rail at roof level; and (ix) Introduction of external pipework to the Baker Street rear elevation.

Variation of Condition 1 of listed building consent dated 19 July 2018 (RN: 18/02362/LBC) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY, to allow reconfiguration of the existing garage and 14 Sherlock Mews entrance at ground floor, including the replacement of all doors at ground floor with a unified design and appearance; reconfiguration of the internal layouts to levels 1 and 2; unify the 14 Sherlock Mews elevation in brickwork of a consistent colour, bonding and character; replacement of windows; refurbishments to the front facade of the mews house; and associated works.

Variation of condition 1 of listed building consent dated 28 November 2019 (RN: 19/07732/LBC) for the installation of two air conditioning units at first floor level, alterations to the ground floor windows, erection of a single storey roof extension at first floor level to existing residential dwelling, associated structural works and alterations to windows and doors, alterations to lightwell windows, and addition of a new external porch, replacement of cornice and associated internal works, NAMELY, to allow the reduction of portico size and alterations to approved staircase and internal ground and first floor areas.