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.

Construction of an L-shaped rear dormer extension to provide additional living accommodation, together with raising the roof ridge by 450mm and installing two rooflights on the front roof slope.

Construction of an L-shaped dormer extension at second-floor level over the existing rear roof planes, to provide additional residential accommodation. The works include raising the roof ridge by 330mm. Installation of Velux Cabrio Balcony window and rooflight to front roof slope.

Construction of rear dormer extension with a Juliet balcony to provide additional living accommodation, together with the installation of three rooflights on the front roof slope, the installation of an air source heat pump to the side of the property and alterations to the existing windows and doors to the rear and side of the property.

Construction of outrigger dormer loft extension with the installation of 1no roof window in front roof slope to provide additional living accommodation.

Alterations to a roof to create a loft conversion using a rear 'L' shaped dormer roof extension, extending over part of the rear outrigger, plus two roof lights to the front slope, including extending the front slope by 39cm to increase the headroom, to provide additional residential accommodation.

Construction of a rear 'L' shaped dormer extension. extending less than 50% of the outrigger depth, plus two roof lights to the front slope, to provide additional residential accommodation

Construction of a rear dormer extension and raised roof ridge at 39.5cm, extension over the outrigger and two rooflights on the front roof slope. to provide additional residential accommodation.

Raise ridge line by 400mm as to provide adequate height for the erection of a L-shaped dormer loft extension to the rear with the installation of 2no rooflights in front roof slope to provide additional living accommodation.

Non-material amendment to planning permission 20/AP/1585 (Demolition and rebuilding of existing single-storey residential annex with additional first floor extension, erection of 2-storey side extension with accommodation at roof level served by front and rear dormer windows in place of existing garage, and provision of new screening on roof terrace facing school.) Changes proposed is to regularise approved boundary wall alignment by 200mm (B7 on plan) projection towards the school and boundary wall set back from tree (B1 on plan) by 150mm.