External alterations, including demolition of the existing glazed entrance box, remodelling entrance and introduction of fenced courtyard garden to Lancelot Place ground floor facade; new terrace at Level 6 and 7 on Brompton Road facade; and new plant and plant screen at main roof level.

Excavation of basement level beneath footprint of existing house with walk on rooflights; Rebuilding of bathroom extension at lower ground floor; Erection of extension at ground floor level over octagonal wing and creation of new parapet; Erection of infill extension on northeast elevation; Remodelling of bay on southeast elevation at lower ground floor level; Erection of replacement dormer; Demolition of existing retaining walls on south east elevation and eastern lightwell and construction of new metal escape stairs in these location; Replacement of windows; Rationalisation of drainage, repair of stucco render, repair/ refurbishment and part replacement of existing roof, refurbishment/ replacement of existing chimney and pots; Installation of Plant Machinery; Erection of bin and bike store to front garden; and associated external alterations.

Demolition and replacement of existing fifth floor, demolition of existing plant room, and erection of a single storey roof extension at sixth floor to 2-6 Stanhope Row with replacement windows, terraces at fifth and sixth floors and remodelling works; demolition of 16 Stanhope Row, 16a, 16b and 17 Market Mews, excavation at basement level and erection of a four-storey (plus part basement floor) replacement building, all to provide an 82-bedroom hotel (Class C1). Demolition of 37 Hertford Street and erection of replacement building (basement to fourth floor mansard roof plus rooftop plant enclosure); and Internal and external alterations to 36 Hertford Street including demolition and remodelling of existing mansard roof; together with excavation at basement level to 36 and 37 Hertford Street to lower existing basement slab level; all to provide 16 residential dwellings (Class C3) along with provision for cycle parking, terraces, refuse storage and rooftop plant, together with other associated works.

Internal and external alterations to 36 Hertford Street including demolition and remodelling of existing mansard roof, with new roof level plant enclosure. (Linked with 22/05759/FULL)

Confirmation that the demolition of roof top plant and enclosures constitutes a material operation to lawfully implement planning permission dated 8 November 2019 (RN:19/02730/FULL) for: Use of part ground and upper floors as a 134-room hotel (Class C1); use of part lower ground as a leisure suite (Class D2); use of ground floor as restaurant/bar (Class A3/A4), external alterations, including demolition to include the removal of the rooftop plant enclosures and replacement with a single storey extension, remodelling of the Little Sanctuary elevation and introduction of balconies and lightwells.

Alterations including remodelling and reconstructing internal walls, replacement of external sliding doors, refitting existing window frames with slimline double glazing, and mounting an air source heat pump at roof level and a hot water cylinder on the terrace.

External alterations including remodelling of fourth floor mansard, replacement of skylights at ground, new sliding access hatch skylight to roof, replacement timber doors at ground and at basement level and to the vaults, reinstatement of Portland stone to the entrance steps, external entrance and vault doors to ground and lower ground.

Internal and external alterations, including removal of modern fixtures and fittings and reinstatement of lost historic fabric, reconfiguration and replacement of modern circulation elements, some minor alterations to modernised plan form and replacement services. Remodelling of fourth floor mansard, replacement of modern skylights at ground. Removal of access ladder on the front of the mansard and railings on the party wall with 37. Continuation of internal staircase to provide maintenance access to the roof vis a new sliding access hatch skylight. Replacement timber doors to the house at ground and at basement level and to the vaults; reinstatement of Portland stone to the entrance steps, external entrance and vault doors to ground and lower ground. (Linked to 21/06872/FULL)

Amendments to planning permission dated 28th August 2020 (RN: 20/04156/FULL) for the remodelling of existing single storey extension at fifth floor level and associated alterations; namely, to raise top of roof of extension by 200mm.

External alterations to the building including: alterations to the front facade; replacement entrance, shopfront and canopy; remodelling of the rear facade at the sixth and seventh floors; installation of roof terraces at the sixth floor, seventh floor and at roof level; extension of lift shaft to roof level; new plant enclosure; lightwell infill; and associated external works in connection with the ongoing use of the building as offices (Class E).