Construction of a new extension containing 3 No. bedrooms at ground and first floors (6 No. bedrooms in total) and a new fire escape stairs at ground, first, second and third (in lieu of an existing external escape stairs. Construction of a new recessed extension at penthouse level containing 4 No. bedrooms and link to new fire escape stairs. Existing 7 No. bedrooms at penthouse level to be refurbished and modified to become 9 No. bedrooms including modifications to existing window layout.