Internal alterations and external alterations including refurbishment of the existing windows and the introduction of slimline double-glazed units into the existing frames; limited window replacement on rear elevation; extension to rear mansard roofslope; replacement of roof level plant and installation of plant screen; infill of redundant lightwells to all office floors; façade refurbishment works; and improvements at basement level to provide end of Trip facilities including showers and bike storage, introduction of a dry riser to the façade of 172 Piccadilly; replacement of five windows and doors to the rear elevation so they align with the terrace works approved under RN 23/015211/LBC and RN 23/01520/FULL (SIte includes 169 Piccadilly)

Alterations to the size and number of dormers to the rear roof extension serving Flat 4.1, re-positioning of the existing handrail to the front roof area and installation of a new roof access enclosure to the front part of the roof area and insertion of a high level window at basement level. Internal alterations comprising of reconfigured partitions at basement to fourth floor level and reconfiguration of staircase between ground and basement level.

Erection of a single storey rear extension at lower ground floor level, creation of terrace at rear ground floor, replacement of modern windows with appropriate traditional sash windows, thermal and glazing upgrades and internal alterations.

Internal alterations at all levels to accommodate office refurbishment, installation of 4 x heat pump units and photovoltaic panels at roof level, replacement of rear basement rooms and single storey extension to rear ground floor to extend existing office use, re-construction of existing wc closet extension at mid first/second floor level, replacement of existing window sashes with double glazed timber sashes, external repairs to building and associated works, all in connection with continued office use.

Internal alterations, re-modelling of basement rear extension, enlarged window from basement to garden, alterations to rear garden, balcony to ground floor rear over basement extension. (Linked with 22/03785/FULL)

Refurbishment of existing six storey hotel including erection of mansard roof extension with associated raising of parapet level, overhaul of existing mansard and flat roofs, restoration of original windows, installation of replacement timber windows, replacement of dome glazing, overhaul pavement level rooflights. Relocation of lift to external rear lightwell. Installation of mechanical air ventilation and heating system at roof level. Replacement of external metal staircase to lower ground floor courtyard. Repair of external stucco render, quoins and soffits to entrance portico and redecoration of external elevation. Repairs to pavement level railings. Rearrangement of internal partitions on all floors to provide 19 hotel rooms with en-suites. Installation of new doors and skirtings. Installation of tanking to basement level and vaults. Repairs to internal plasterwork and masonry walls.

Internal refurbishment and layout changes to maisonette, replacement of windows, replacement/thermal upgrade of roof with new roof light arrangement, creation of loft room and extension of staircase. (Linked with 23/00135/FULL)

Erection of single storey ground floor rear extension (part solid and part glazed infill), removal of vents on front facade windows, replacement rooflights at main roof level, and internal alterations (Linked with 23/02245/FULL).

Construction of a single storey extension at rear lower ground floor level and a single storey extension within the front lower ground floor lightwell area; installation of new air conditioning condenser unit at roof level; enlarged opening for French doors at rear ground floor level and replacement front door; replacement windows/glazing; and replacement terrace decking and fencing; internal alterations.

Alterations to Grade II listed building including rear extension, replacement rear windows, new terrace balustrade and new staircase to the rear, minor internal modifications, levelling up of existing forecourt; conversion of garage to utility/ guest room with associated alterations including the replacement of the existing roof with flat roof behind existing parapet; handrail to entrance steps at the front; and alterations to provide power to existing gates (Linked with 22/03480/FULL) [REVISED DESCRIPTION]