The focus of the proposal is to deliver a new lightweight two storey extension, providing additional living accommodation to the property. The principle of the proposed is to extend the roof top level to provide a new residential 1 bed flat to the property. The size of the new proposed 1 bed flat will meet the minimum standards as outlined in the London Housing SPG. The proposal takes into careful consideration the effect of the proposed upon the character and appearance of the existing property, the conservation area and adjacent buildings and their occupants through a sensitive approach to scale, design and materiality. The configuration and scale of the extension, along with the restrained pallet of materials proposed, will provide an elegant, simple extension in keeping with the character and scale of the property. The majority of the wall and roof cladding will be a standing seam zinc, which is highly sustainable and durable material and well used in areas of similar Conservation status within London. The proposed materials will be well detailed and their colour choice in keeping with the local palette of materials. Consideration has been taken to reduce the bulk of the proposed lightweight structure on the upper floors to avoid infringing on the neighbouring properties.