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).

Amendments to planning permission dated 19 April 2021 (RN: 20/04541/FULL) for Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed. (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET). NAMELY, consisting of the provision of new door height railing gates to the main entrance, new openable railing gates to the eastern side of the main entrance, and insertion of French doors to the eastern ground floor shopfront.

Variation of Condition 1 of planning permission dated 16 February 2017 (16/10409/FULL) for the use of part basement, part ground floor level and first to fourth floor levels and the erection of a mansard roof extension at fifth floor level to provide 14 residential flats (Class C3). Provision of external terraces at rear second, third, fourth floor and fifth floor level. Installation of mechanical plant at fourth and fifth floor level. Lowering of the existing basement vault floor below Andrew's Crosse by 0.5m and installation of new lightwells and railings at basement and ground floor level on the Andrew's Crosse elevation. Associated alterations to windows on the front and rear elevation and associated internal alterations at 116-118 Chancery Lane and removal of part of the external staircase adjacent to 115 Chancery Lane and alterations to the roof profile at rear fifth floor level and relocation of plant; namely, alterations to the size and number of dormers to the rear roof extension serving Flat 4.1 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.

Erection of new roof extension to existing flat roof and alterations to front elevation all in connection with the use of the property as two residential units (Class C3)

Use of the lower ground and ground floor to a single residential unit, lowering and extending of vaults for usable ancillary space, alterations to the façade, erection of bin store within vaults, internal alterations and associated works. (Linked with 23/01044/LBC)

Variation of Condition 1 of planning permission dated 19th April 2023 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY to install additional plant at rear first floor level and amend the approved enclosure, decorative cladding and green wall. (Application under Section 73 of the Act).

Variation of Condition 1 of planning permission dated 19 April 2021 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY, to allow removal and replacement of existing central core and floors (retrospective), minor changes to internal configuration, provision of new entrance gates to permitted railing enclosure at the front, new door height gates to central entrance and new timber painted frames to glazed entrance. (Application under Section 73 of the Act).

Amendments to planning permission dated 19 April 2021 (RN: 20/08120/COFUL) for variation of condition 1 of planning permission dated 29 March 2019 (RN: 17/11404/COFUL) for the demolition of existing buildings and structures and erection of new building of up to five storeys plus basement floor to provide 49 residential units (Class C3); with car and cycle parking, storage and plant rooms at basement level and landscaping to central garden and site frontages and associated works from RN: 17/11404/COFUL, namely, to vary the approved drawing numbers to amend the design of the building facade depth to reduce the depth of the brick reveal; NAMELY, alteration to plant & location of access hatches/AOV to roof including boiler flue; basement ventilation penthouse louvres added; PV panels updated to specialist design; minor amendments to main entrance doors; minor amendments to courtyard doors; location of bike stand updated to approved planning application; car lift door design updated to specialist design; bike/Bin lift lobby doors amended to specialist design; generator room door updated to specialist design; unit 4.04 layout includes L-shaped corridor to fire engineers guidance; and unit 4.04 Window amended.

Alterations and extensions, including demolition and reconstruction of rear extensions, excavation of basement floor, removal of tree, alterations to front boundary wall, installation of mechanical plant, erection of cupola at roof level, use of part of garden to rear of No.8 Ordnance Hill, and internal works to all floor levels in connection with the use of the building as five residential apartments.

Amendments to planning permission dated 14th March 2023 (RN:22/05004/FULL) for, "Alteration and extension of existing buildings including removal of one single storey extensions and one part single and part two storey extension, erection of infill extensions at first to third floor levels, a replacement part single storey and part three storey side extension adjoining Mount Street Garden and a replacement single store extension fronting onto South Street, use of part lower ground and part ground floor levels as an art gallery with ancillary storage and office accommodation (Class E), use of part basement/lower ground , part ground floor and first to fourth floor levels to aparthotel to provide 10 visitor accommodation units (Class C1) with ancillary facilities at ground and lower ground floor level, including communal lounge/library at ground floor level, use of ground to third floor of no.35A South Street, first and second floors of no.35 South Street and first to fourth floor of no. 17 South Audley Street as six residential units (Class C3), creation of terraces at first floor level within a central greened courtyard, installation of plant and associated external alterations" [Site includes 22 South Audley Street, 35 South Street and 35A South Street]; Namely, the revision to the wording of Condition 32.