External alterations including refurbishment and extension of the garden pavilion building to the rear of the rear garden to provide space for a home gym and office; associated landscaping works; internal alterations including layout changes to the first floor level of the coach house to provide an additional room for use as a home office; various internal alterations to the main house including the installation of integrated joinery across all floors including to both bedrooms, the main hallway and the bathroom at third floor level, the master bedroom and guest bedroom at second floor level, and the back kitchen at ground floor level; installation of a new boiler to the cloakroom at first floor level.

Internal alterations to include: enlargement of the home team dressing room, re-location of shower room and wc area, removal of some existing walls (one original and one non-original) and creation of a new opening through an existing wall including new studwork walls to form new rooms, replacement of all internal contemporary finishes and services; associated internal alterations.

Internal alterations at ground floor level to include existing floor screed to be made good ready to receive new floor finish, proposed co-ordination, coffee & tills counters, internally illuminated sign (hanging from ceiling) fronting Margravine Gardens elevation, brick nib walls to be demolished, proposed partition to customer area, existing walls removed and replaced with balustrade, existing dropped floor raised with new floor joists to make level throughout, elements of plasterboard lining and boxing out, proposed stainless steel counter tops and carcasses, proposed waste pipes to run along walls at high level, existing wall removed, and internal alterations to mezzanine floor level to include new stained glass and timber balustrade, existing partition to be demolished, proposed stainless steel counter tops and carcasses, proposed partitions to back of house area, new plasterboard lining throughout and boxing out to conceal existing waste pipes; associated internal alterations.

Erection of a single storey extension with a glazed roof extension above the existing garage in the rear garden; internal reconfiguration to include home office space; installation of new roof lantern to replace the existing lantern at roof level and replacement of existing garage doors with new enlarged garage doors to the eastern elevation of the garage.

Repair of the Hurlingham House, Horseshoe Yard building elevations including: re-decoration and repair of sash and casement windows, half glazed doors and French doors, removal of paint on Portland stone window cills, band course and pediments, re-pointing brickwork, taking up and relaying coping stones, replacing concrete coping stones with new Yorkstone, staining existing brick repairs, repairing gauged brick arches and general external redecoration.

Demolition of the existing Rosalind Franklin Building (excluding boiler house arch and chimney) and erection of a new two storey Centre for Design and Innovation (CDI) adjacent to the retained boundary wall and new fencing to the rear of properties on Rowan Road; excavation to extend the CDI to the west; erection of a glazed link between the CDI and the Mercers Building to the south; refurbishment of the Mercers Building including removal of the fire escape stair and introduction of new overhead door; demolition of the existing Forum Building (excluding screen to science courtyard) and erection of a new three storey Staff Hub and link with the Main Building; enclosure of spaces between the Main Building and the Staff Hub and CDI buildings by erection of covered links; installation of solar photovoltaic panels and replacement of existing plant screen to the roof of the Celia Johnson building; landscaping of the car park including changes to the entrance gates and the erection of a new single storey maintenance building in the southeast corner of the car park; reconfiguration of some spaces in the Main Building over lower ground, upper ground and first floor for administration spaces, meeting spaces, pastoral spaces and toilet and locker space; landscaping works to the science courtyard and other associated works.

Alterations and extensions to the Grade II listed building including the demolition of the summer house, erection of a part-one, part-two and part-three storey extension and excavation of a basement beneath the extension, in connection with the use of the site as a 32-bedroom nursing home (Use Class C2) together with the demolition and replacement of front and side boundary walls, and means of access to the highway on Daisy Lane.

Installation of a new door and door entry system to the existing opening on the front elevation of the former caretaker's house; creation of a new pathway leading from the proposed waiting area at the rear of the former caretaker's house to the schools hallway; refurbishment and repair works to existing fascia boards of the former caretakers home; associated internal and external alterations in order to enable the use of the former caretaker's house as a new school visitors reception area (amended development description).

Internal alterations to include a new internal retail fitting at ground floor level, consisting of the installation of new display and serving counters, back bar and installation of a DDA WC at ground floor level; provision of back of house accommodation, kitchen, store, dumbwaiter and 2no. DDA WCs to the first floor with associated balustrades and handrails and removal of 1no. rooflight. Removal of existing internal partitions between retail unit and staff room and installation of new internal partitions. (Part retrospective)

Demolition of existing mews garages and the erection replacement part two storey, part three storey plus-basement building to provide 2 x single family dwellinghouses with roof terraces at second floor levels, including a three storey vehicle parking stacker serving Northumberland House.