Change of use of part of the building from Town Hall (Sui Generis) to a 90 bed hotel (Use Class C1) with integral and ancillary uses including bar/restaurants, meeting rooms and conference/event space and change of use of the remainder of the building to a co-working space (Use Class E(g)); excavation of the basement; the provision of ancillary parking spaces, taxi drop off and service area with access from Harwood Road and Moore Park Road; erection of an additional storey at roof level (plus a storey of plant) and a four storey rear extension to the 1934 Extension following demolition of single storey corridor link to Harwood Road Wing; erection of additional storeys at second and third floor levels plus plant at fourth floor level to the Harwood Road Wing following demolition of former caretaker's flat at second floor level; erection of a fire escape stair and part three, part five storey (plus plant) extension to the rear of the Concert Hall/Council Chamber close to the Cedarne Road boundary; enclosure of central lightwell in connection with installation of new lifts; erection of new lift and stair cores to the north and south sides of the Harwood Road Wing; replacement of selected windows; various window alterations; installation of fixed glazed acoustic screens to exterior of selected windows and various other external alterations in connection with the change of use; and various internal demolition works and internal alterations including changes to the layout of the Council Chamber, the installation of fire lobbies, pod bathrooms, kitchenettes, lifts and the installation of secondary glazing to selected windows. Please note: there is an associated Section 73 application related to these works: 2021/04043/VAR

Replacement of existing single glazed windows and doors with new double glazed timber framed doors and windows to the rear elevation at lower ground and upper ground floor levels; refurbishment of existing windows and door on the front elevation at lower ground and upper ground floor levels; alterations to the roof of ground floor back addition to include the replacement of existing single glazed skylight with new double glazed skylight comprising of 3no glazing panels with 1no openable centre glazing panel; raising of the parapet of ground floor back addition; internal alterations to include re-configuration of the internal layout at lower and raised ground floors (including demolition of some internal walls at lower ground floor level, formation of a new utility area in the entrance space and new staircase and openings to replace existing); associated internal alterations.

Erection of an enlarged single storey rear extension to the side of existing conservatory, following partial demolition of the existing back addition; alterations to the single storey rear extension to include, new obscure glazed flat rooflight on top, replacement of roof coverings with new stone paving on pedestals, new stone coping; removal and infilling opening to the side elevation of the existing conservatory; internal alterations at ground floor level to include relocation of an existing door in the rear hall to the proposed bathroom, formation of a new bathroom with new tiled flooring following the removal of existing partition wall, WC, door, modern fittings and built-in joinery; associated external and internal alterations.

Erection of rear extensions at first floor level following the demolition of existing first floor rear back addition; alterations to the fenestration of the modern ground floor extension; internal alterations to include: internal demolition and re-configuration of the ground floor comprising of re-instatement of opening in the wall to the kitchen, change to the existing doorways and reconstructing the wc, internal alterations at first floor level to include creation of bathroom; internal alterations to floors, re-instating original cornices, balustrades and fireplaces, new front boundary ornamental railings; associated internal and external alterations; addition of sedum roof over existing ground floor rear extension.

Erection of rear extensions at lower ground and upper ground floor level following the demolition of existing conservatory at upper ground floor level; alterations to the roof of single storey back addition; alterations to the roof of upper ground floor side extension to include the installation of an air conditioning unit, re-roofing and replacement of 2no sky lantern rooflights with a single flat rooflight; replacement of the existing window (of the side extension) with a door at lower ground floor level to the front elevation; reducing the height of the single storey back addition and installation of new railings (increasing in height) to replace the existing railings above the roof of single storey rear extension; installation of a new timber window at upper ground floor level and replacement of the existing windows at lower ground-floor level to the side of the back addition with new windows; internal alterations to closet wing at upper ground-floor including removal of partition walls and installation of double doors in connection with the installation of a new staircase and bathroom within the side extension, removal of kitchen from front reception room at lower ground floor level and alterations to chimney breast including reduction in size of existing opening and installation of salvaged fire surround from rear reception room at lower ground floor level, formation of a new kitchen in the rear reception room at lower ground floor level including alterations to the chimney breast and boxing in of existing door, enlargement of existing door opening from hallway to front reception room at lower ground floor level.

Replacement of existing lantern rooflight with a new flat rooflight above the roof of the single storey side extension; demolition of the chimney stack and installation of 4no rooflights within the roof of the single storey rear extension; installation of a new window and replacement of existing window with French doors to the side elevation of the single storey rear extension; internal alterations to include demolition of chimney breast in the living room, removal of internal walls in the shower room and WC area, and replacement with new stud partition walls to form a utility area and shower room at ground floor level; associated internal alterations.

Erection of a single storey rear extension following the demolition of existing ground floor back addition and garden wall, including installation of 3no. rooflights on top of the flat roof, installation of double glazed Crittall-type windows and sliding door to the rear elevation; internal alterations include, repositioning of a ceiling hatch and installation of a ladder to provide access to the loft, and creation of a new bathroom at first floor level, demolition of partition walls between reception and storage room to kitchen and dining area, removal of a door opening; reinstatement of the original partition wall in connection with the creation of a study room, creation of a cloakroom under the staircase, formation of an opening to allow for kitchen door to be moved towards the centre of the entrance hallway wall segment, formation of an opening to allow for proposed cloakroom to extend slightly into the kitchen, at ground floor level.

Demolition of existing conservatory, the wall between the conservatory and kitchen and of the roof over the single storey rear extension; erection of a new single storey rear infill extension (matching the footprint of the existing conservatory), including new roof over whole of single storey rear extension; enlargement of the existing ground floor rear elevation kitchen window and installation of a white timber sash slimline double glazed window; installation of an aluminium casement window at ground floor (within the south facing wall) to serve the kitchen; replacement of the existing front elevation ground floor window (serving a W/C) with a new timber arched sash single glazed window; internal alterations including: Demolition of the internal partitions and raising of the floor level at first floor level within the existing extension; new fittings and finishes to the first floor bathroom, replacing the existing; enlargement of the existing loft hatch access; enlargement of the existing ground floor opening between the living room and conservatory; the blocking up of the existing doorway opening between the living room and the internal staircase at ground floor level; opening up of the ground floor fireplace (within the parlour room) and the installation of a new fireplace; enlargement of the existing hallway area, via the removal/alteration of existing internal wall; replacement of the existing kitchen boiler and the existing hall cupboard hot water cylinder with a single combination boiler in new, enlarged utility room; the replacement of existing (non-original) flooring and skirting with new engineered wood flooring with under floor heating; which will provide level access; new fittings and finishes to the kitchen and W/C. (amended description).

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.

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.