Alterations, including partial demolition (retrospective) and rebuilding of existing three-storey building with the addition of a further two-storey upward extension on top, in connection with the provision of flexible Class 'E' commercial use, including office accommodation/employment hub, together with a café/restaurant space at ground floor and roof level, associated soft and hard landscaping, upgrading of central courtyard and provision of a roof top garden, provision of car parking spaces, cycle parking spaces, refuse storage and other associated works.

Alterations to Piccadilly Building including erection of 3-storey extension to east and south and addition of new mansard roof at third floor to provide additional church office and meeting room accommodation; new plant rooms at basement level, plant at new third floor level, new service tower within Piccadilly Building and demolition of vestry link building to create new entry to Church yard from Church Place; relocation of rectory accommodation from Piccadilly Building into Jermyn Street Building and erection of new second floor mansard to Jermyn Street Building to support rectory use; relocation of existing cafe accommodation from ground floor of Jermyn Street Building into ground and part basement floor of Piccadilly Building; alterations to St James's church including repair of spire, installation of plant within former bell tower, excavation beneath the south porch of the church; and reinstatement of south entrance door; alteration of Jermyn Street Building to provide new route between Jermyn Street and the churchyard, new railings to Jermyn Street, and re-landscaping of the North and Green Churchyards, and erection of new single storey garden pavilion in Green Churchyard.

Alterations, including partial demolition (retrospective) and rebuilding with an additional two-storey upward extension to create a third floor and set-back fourth floor level, in connection with the provision of flexible Class 'E' commercial use, including office accommodation/employment hub, together with a café/restaurant space at ground floor and roof level, associated soft and hard landscaping, upgrading of central courtyard and provision of a roof top garden, provision of car parking spaces, cycle parking spaces, refuse storage and other associated works.

Variation of conditions 2 (Approved plans), 5 (Deconstruction methodologies), 6 (External Samples), 9 (Structural engineering works) and 19 (Milner Hall Gallery) of listed building consent 20/00167/LBC (Demolition of Lodge buildings, garden works buildings, existing hard landscaping on Ramparts and internal elements. Refurbishment, alteration and extension of existing building, including external glazing over internal courtyards, insertion of ensuite bathrooms and lifts, and extension to existing basement to provide residential, teaching and office accommodation with associated structural works. Erection of replacement Lodges and single storey garden room. Creation of underground accommodation and sunken courtyard within the grounds (east) to provide additional residential ensuite bedrooms. Erection of a single storey glazed pavilion building (with new basement) within the grounds (west) to provide additional teaching and office accommodation. Erection of new gardeners outbuildings. New landscaping of garden and Ramparts; removal and re-instatement of boundary walls; removal and reinstatement of front ramps; and provision of cycle parking.) to allow the reduction in the extent of the basements, alterations to east wing layout, alterations to route of earth ducts, alterations to garden pavilion roof to curved form, reduction in demolition to basement areas, amended seating and lightwell landscaping around Giants Grave, relocation of lower foyer lift, alterations to pavilion internal layout to omit timber entrance, alterations to risers in the West Wing and relocation of smoke vents, amendments to lodge roof to improve interface with West Wing, internal layout of office amended and amendments to internal doors and screens. (Amended Plans) (Amended Description).

The replacement of the existing windows and partial over-cladding of the existing elevations. A 5 storey extension on the building frontage to enable 2 new modern lifts and a new accommodation staircase to be installed with a new reception at the ground floor level. The demolition of the existing rooftop plant room and the erection of additional office space partially covering the existing roof. The alteration of the existing vehicular access to form a new central combined entry and exit point and dedicated disabled parking together with new soft landscaping along the street frontage.