Demolition and replacement of rear extension at lower ground, new extension at ground adjacent to boundary with no. 19 St Petersburgh Place; demolition and replacement of existing rear ground conservatory; installation of new metal railings enclosing terrace at rear first floor; alterations comprising of replacement fenestration and doors to front and rear elevations; and replacement and relocation of entrance steps with raised balustrade; alterations and infill extension to roof and installation of lantern light.

Variation of condition 1 of planning permission dated 16th November 2021 (RN: 21/05242/FULL) for Erection of rear extension, formation of lightwell and associated excavation to lower ground floor level; glazed conservatory at rear ground floor level with associated balcony and stair; partial demolition of existing closet wing and replacement with raised roof level; installation of dormer window, roof light and AC units at roof level and associated works. NAMELY, installation of an alternative air conditioning unit and replacement of its enclosure with an acoustic screen at roof level.

Amendment to planning permission dated 13th February 2023 (RN 22/08253/FULL) for the remodelling of roof to provide third floor level, extension to sub-basement, replacement conservatory and associated fenestration and facade changes. Installation of plant within the roofspace with louvres on the rear elevation and installation of PV panels at main roof level. (Site includes 31 Hay's Mews) NAMELY, amendment of the trigger of condition 15 from pre-commencement, to pre-basement excavation work.

Amendments to planning permission dated 13th February 2023 (RN: 22/08253) for, 'Remodelling of roof to provide third floor level, extension to sub-basement, replacement conservatory and associated fenestration and facade changes. Installation of plant within the roofspace with louvres on the rear elevation and installation of PV panels at main roof level. (Site includes 31 Hay's Mews)'; Namely, to demolish an additional small area of the wall at the rear elevation.

Amendments to planning permission dated 16 November 2021 (RN: 21/05242/FULL) for 'Erection of rear extension, formation of lightwell and associated excavation to lower ground floor level; glazed conservatory at rear ground floor level with associated balcony and stair; partial demolition of existing closet wing and replacement with raised roof level; installation of dormer window, roof light and AC units at roof level and associated works'. Namely, to change the approved roof plant to a better performing and more environment friendly model (Daikin VRVRXYSCQ6TV1) and amend the associated plant enclosure.

Replacement of conservatory roof to flat roof to create terrace above with railings, replacement of window to doors at second floor level.

Replace existing damaged timber kitchen skylight windows to conservatory with frameless glass roof.

Internal and external changes including: new entrance step landing; glazed fanlight above front door; replacement of rear ground floor windows with doors to facilitate access to new walk-on glass floor within rear lightwell; metal balustrade, metal handrail, metal stairs with glazed treads between terrace and garden with decorative privacy screen to edge of external stairs; replacement of modern single glazed conservatory with double glazed slimline conservatory; replacement flat metal roof to match existing at rear second floor level; proposed AC unit within roof void including the installation of acoustic louvre air intake and extract; updated fourth floor bathroom layout; and replacement of non original tiles on the first floor rear balcony.

Internal and external changes including: new entrance step landing; glazed fanlight above front door; replacement of rear ground floor windows with doors to facilitate access to new walk-on glass floor within rear lightwell; metal balustrade, metal handrail, metal stairs with glazed treads between terrace and garden with decorative privacy screen to edge of external stairs; replacement of modern single glazed conservatory with double glazed slimline conservatory; replacement flat metal roof to match existing at rear second floor level; proposed AC unit within roof void including the installation of acoustic louvre air intake and extract; updated fourth floor bathroom layout; and replacement of non original tiles on the first floor rear balcony.

Variation of Condition 1 of planning permission dated 10 November 2017 (RN:17/08371/FULL) for, 'Erection of a conservatory at rear first floor level, associated internal and external alterations, installation of window at rear second floor level'; NAMELY, to enable replacement of existing concrete roof tiles with natural slate tiles and re-use of existing floorboards