Demolition of garage to side and conservatory to rear at lower ground floor level; Erection of two storey extension to side and rear and single storey extension to rear with terrace above; Installation of plant machinery within enclosure in rear garden; Lowering of lower ground floor level and part of rear garden; Hard and soft landscaping works; Changes to fenestration and external alterations.

Demolition of the existing rear modern extension and replacement with new infill extension at basement, ground and first floor level. Creation of a new residential unit and reconfiguration of existing residential accommodation across all floors. Installation of a new lift for level access; installation of new windows and external plant units at rear second floor level and associated internal and external alterations.

Demolition of existing rear extension and front extensions and erection of two storey extensions to front and rear; Excavation of single storey basement with associated lightwells; Partial demolition and extension of roof including formation of dormers and installation of PV panels; Installation of of plant machinery at basement level; Alterations to fenestration; Landscaping and associated external alterations.

Variation of Condition 1 of planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to amend the approved drawings to replace a single ground floor level window on the north elevation with a door and to erect of a bridge over the existing lightwell to provide a secondary fire-protected egress point.

Partial demolition of the ninth floor and erection of single storey extensions to the south, north and east (rear) of the ninth floor, erection of new kitchen extract riser, replacement windows, together with replacement plant and equipment to the roof of the ninth floor, and other associated internal and external alterations; includes use of part of the perimeter area of the south-eastern area [opposite the junction with Tilney Street-Deanery Street] of the ninth floor roof as a terrace and use of part of the rear eastern ninth floor wing, parallel to Deanery Street, as a roof terrace, both terraces being used as additional restaurant seating ancillary to the hotel.

External alterations including; the partial demolition of existing mansard roof and corner coping to accommodate a new and extended lift; installation of replacement windows at rear lower ground and ground floor level; installation of replacement entrance steps; installation of plant within lowered vault at lower ground floor level, installation of louvered vault doors; installation of a plant enclosure, photovoltaics and a living green roof at part main roof level; creation of terrace with access hatch and associated works at part main roof level for use in connection with the existing office accommodation (Class E).

Demolition and replacement of existing lower ground floor rear extension with lowered floor level and enlarged terrace above, infill of existing lower ground floor courtyard and creation of new courtyard at lower ground floor level, extend existing parapet along the first floor roof, partial infill of front lightwell, alterations to fenestration throughout including new access doors to ground floor terrace, replacement metal staircase to front lightwell, partial excavation and underpinning of lower ground floor level to lower floor level, internal alterations throughout all in connection with use of the building as a single family dwelling

The demolition of the front facade and replacement with a new construction replicating the existing with internal insulation and replacement windows.

Demolition of the existing garage, rear conservatory and part of main building; erection of extension to rear at lower ground floor level with terrace at ground floor level, four storey side extension and two dormers to rear; Alterations to fenestration; installation of Air Source Heat Pumps (ASHP) in front lightwell; and associated external alterations.

Erection of a single storey extension at sixth floor level with a terrace to the rear. Demolition of existing rear lower ground floor extension and erection of an alternate extension in the northern portion of the rear garden with a terrace above. Partial infilling of internal lightwell from first to fifth floor level adjacent to No. 4 Balfour Place to accommodate a lift. External alterations including modifications to the rear fenestration, replacement window and installation of railing detailing to the front elevation, modifications to main entrance portico, alteration to fire access arrangement and associated works. Reconfiguration of existing building, and together with the proposed extensions to provide six residential units (one additional unit) (Class C3).