Amendments to planning permission dated 30 March 2022 (21/07642/FULL) for the variation of Conditions 1, 20, 21, 23, 24 of planning permission dated 16th March 2021 (RN 20/04933/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace; NAMELY, Street scape enhancements (Front elevation - Carlton House Terrace and Facade realignment); Amenity enhancements (Inclusion of glazed doors to external terraces (west elevation), external terraces and Level 10 Roof Access) and Detailed design and technical amendments (Widening of the central 'core strip' and Balustrade Position at level 10).

Amendments to planning permission dated 19 November 2018 (RN: 18/07021) for: Demolition of the rear facade of Henrietta House and the erection of a seven-storey extension at above ground floor level to create new office floorspace, installation of a deck over the existing servicing yard to the rear, relocation of the existing fire escape stair from the rear of 91- 95 Wimpole street, demolition of part of the existing plant enclosure at roof level of Henrietta House and erection of new office floorspace, external alterations to the ground floor level elevations of Henrietta House on Welbeck, Wimpole Street and Henrietta Place, installation of photovoltaic panels at roof level, installation of a new green walls to the rear and side elevations to the new rear extension to Henrietta House and all associated works (Phase 1). Removal of the existing plant enclosure of 91-95 Wimpole Street for the erection of a two-storey roof extension and associated works (Phase 2), all in connection with the existing office use (Use Class B1) (SITE INCLUDES 91-95 WIMPOLE STREET) NAMELY, height of zinc cladding on south elevation reduced in height by 0.2m, areas of approved zinc cladding and rendered walls omitted and existing material retained, extent of 8th floor plant enclosure extended to the north by 0.4m, UKPN entrance reconfigured, new decorative screen to rear courtyard elevation, rear wall of new lift to be clad in white painted steel instead of white render.

Amendments to planning permission dated 26 May 2020 (RN: 19/01472) for: 'Excavation to create a deeper basement level and excavation under Wells Mews, demolition of 58-60 Berners Street and demolition behind retained facade of 14-17 Wells Street and erection of a new mixed use development within two adjoining buildings comprising lower ground, ground plus 5 storeys fronting Wells Street and lower ground, ground plus 7 storeys fronting Berners Street to accommodate flexible retail (Class A1) or financial and professional services (Class A2) or restaurant (Class A3) purposes on part lower ground and part ground floors, office (Class B1) on upper floors and installation of plant behind screening on both roof levels. The scheme also includes external alterations to 14 and 15 Eastcastle Street (part of Woolverstone House) to accommodate a wider and improved entrance into Wells Mews from Eastcastle Street, an upgraded residential entrance to 1 Wells Mews'; NAMELY, changes to the internal layout at lower ground and ground floor levels, removal of bridge and entrance doors to Berners Street retail unit, reduced depth beneath pavement on west side of Wells Mews to accommodate smoke vents, alterations to fenestration, retained roller shutter instead of new louvred access door to Wells Mews, extensions to railings around roof level plant, altered layout of roof level plat and associated alterations.