Amendments to planning permission dated 24th June 2021 (RN:20/07236/FULL) for Use of the existing buildings to create two dwelling houses with extensions including demolition and rebuilding of the mews building and excavation to extend the existing basement, installation of air conditioning units on the roof of 1 Upper Belgrave Street and vaults of 1 and 2 Upper Belgrave Street, and associated alterations. (Site includes 1 Groom Place). NAMELY, to demolish the existing lower ground floor slabs in both existing houses and replace with new slabs.

Demolition of existing roof and erection of a mansard roof extension at first floor level and alterations to the front and rear of the portion of the building fronting onto Bryanston Mews East. Subdivision and reconfiguration of existing ground and lower ground floor levels of the building and together with the new first floor extension to the mews portion of the building, create two self-contained residential units (Class C3) and associated external alterations. Lowering of front pavement vault [Site includes 22 Bryanston Mews East] (Linked with 23/07347/LBC)

Variation of Condition 1 of planning permission dated 03 August 2023 (RN: 23/02362/FULL) for, 'Partial demolition; infill of rear lightwells; front extension at fifth floor level and introduction of a terrace; partial replacement of front elevation; refurbishment of existing building; installation of plant equipment; replacement windows; cycle parking; and associated external alterations; in connection with the use of the building as Offices (Class E);; NAMELY, the reduction of roof level massing to the rear, installation of guttering above fifth floor and introduction of roof pitch increasing the height of the fifth-floor façade by 250 mm; removal of external basement to ground floor stair to the rear, revised canopy design to the front, revised signage design to left of canopy, addition of three external wall lights at ground level, new planters at ground and terrace levels, revised Crittall style window arrangement, spandrel panel at front facade to incorporate vertical detailing to match mullions, change in location of bike racks, reduction of window sizes to east and west lightwell infills and introduction of grilles at eastern infill, and proposed reduction in rooflight to east and west infill extension. (Application under Section 73 of the Act).

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.

Internal and external alterations including new internal passenger lift; new ground floor access from Mount Row; alteration to fenestration on rear facade; infill of first floor terrace lightwell and associated demolition works (Linked 23/05948/FULL)

Replacement glazing to existing front windows and new French doors to the rear and associated internal alterations including demolition of modern mezzanine level. (Flat 5 First Floor) (Linked to 23/03264/FULL)

Installation of a passenger lift and a new spiral stone stair in the location of the existing redundant secondary staircase; demolition and redevelopment of late 19th century rear addition; courtyard extension to the north side of the property, with Marylebone Mews frontage and use as a member's club (sui generis); alteration of roof-escape to accommodate plant behind a new pitched roof; addition of a replacement stair from second to third floor, following the demolition of late 19th century additions at these levels; and internal alteration and refurbishment, including the upgrading and re-routing of services. (Linked with 23/05229/LBC)

Installation of a passenger lift and a new spiral stone stair in the location of the existing redundant secondary staircase; demolition and redevelopment of late 19th century rear addition; courtyard extension to the north side of the property, with Marylebone Mews frontage and use as a member's club (sui generis); alteration of roof-escape to accommodate plant behind a new pitched roof; addition of a replacement stair from second to third floor, following the demolition of late 19th century additions at these levels; and internal alteration and refurbishment, including the upgrading and re-routing of services. (Linked with 23/05228/FULL)

Demolition of existing lower ground rear extension and second floor closet wing extension; Erection of new two storey extension in rear courtyard and replacement second floor closet wing extension; New external stair to front lightwell; Alterations to the existing rear closet wing; Replacement roof and dormers; Remedial structural and maintenance works. Internal alterations, including to partitions.

Amendments to planning permission dated 15th January 2019 (RN 17/05283/FULL) for the demolition of Nos 66 & 68 Oxford Street and redevelopment behind retained facades of Nos 54-62 Oxford Street and 51-58 Rathbone Place to provide a new building comprising four basement levels, ground and seven upper floor levels. Use of entire building either for retail (Class A1) or the use of part basements to first floor as retail (Class A1) and offices (Class B1) with a dual/alternative use of floors two to seven for either retail (Class A1) or office (Class B1) use; and associated works including plant at basement levels 3 and 4, the creation of terraces at sixth and seventh floors; external roof top plant at seventh floor level behind an acoustic attenuated louvred façade onto Perrys Place, and the installation of photovoltaic panels at roof level. NAMELY, alterations to the external facades of the new build elements; minor amendments to the internal floor areas as a result of the new external facades.