Demolition of existing pitched roof and construction of a mansard roof extension across both properties (29-31 Choumert Grove) with four dormer windows to the front elevation and two to the rear elevation to provide additional living accommodation, together with raising the existing parapet wall to the rear elevation and replacing all of the existing windows with aluminium framed casement windows.

Demolition of existing internal stairs with new and adjustments to the stair core on the fourth floor. Replacement of lift with new to extend to the fourth floor. Modern partitions replaced with new to create meeting rooms, toilets, risers, and storage areas. New floors and ceiling finishes. Internal openings in communal areas to be enlarged to accommodate new doors. Replacement of the doors to the rear elevation and removal of existing modern window and wall section on first floor for new door to fire escape stair. Secondary glazing to rear elevation windows and external loading doors. The first floor glass roof to be removed and replaced with a solid roof. Changes to the approved rear fire escape stair and landings including extension to the First floor. Replacement of pavement lights. First-floor terrace plant enclosure extended to accommodate new plant. Adjustments to terraces on the first floor and roof. Replacement of the roof access dormer, new skylights and warm roof build-up with like for like finish. Making good of the existing external lighting and addition of external lighting to entrance, fire escape and terraces.

Demolition of existing detached garage to rear of property. Demolition of existing two storey bay window at the rear of the property and installation of new bi-folding windows at first floor level. Construction of a single storey side and rear extension. New dormer extension to rear roof pitch and loft conversion at second floor level. New conservation roof lights to side roof pitches over main body of house. External refurbishment and landscaping works to the front and rear gardens and side passage.

Demolition of existing side and rear extension and construction of single storey side and rear extension with 2no. rooflights. Extension to existing dormer. Removal of side window and installation of two skylights to existing rear outrigger roof and rear roof slope. Replacement of existing fenestration with white timber-framed, double-glazed windows to match existing. (Amended description)

Demolition of existing single storey rear extension. Construction of single storey rear extension (L-shaped). Insertion of rear dormer to the main roof. Removal of existing roof lights (2No.) and insertion of roof lights (2No.) to main roof.

Construction of front driveway including part-demolition of garden wall. Erection of side rear single storey ground floor extension with green roof. Extension of rear garden paved area. Provision of bike shed and access door in property side passage. Widening of existing window dormer at loft level. Insertion of 2No roof lights 1No to outrigger roof 1No to main roof. Replacement of all existing fenestration (windows/doors) with double glazed timber framed units. Removal of arboriculture features and landscaping works to facilitate the development.

Demolition of existing lean-to rear extension and conservatory and construction of ground floor rear extension and first floor rear extension; alterations to roof, including new pitched roof to rear, rear dormer extension and two rooflights to side roof slopes; and alterations to existing fenestration, including installation of new windows and doors and increasing height of existing bay window to front elevation.

Demolition and reconstruction of the existing outbuilding ancillary to the main house, rear dormer extension and all associated works.

Demolition of butterfly roof and construction of mansard roof extension with 2no. front dormer windows and insertion of 1no. roof light to mansard flat roof.

Erection of a front pitched dormer and rear dormer, demolition of existing conservatory and construction of ground floor rear extension with external alterations including new windows and door casements and conversion of existing outbuilding into residential annex.