Non-material amendment on application 12/0684/FUL for substituting Sarnafil on the side wall of the loft conversion and cheeks of the dormer (as per drawings attached) with already approved by the Conservation Officer SIGA 39 natural slates by SIG Roofing to avoid introducing another material to the development and allow constructing cross ventilation for the flat roof. Fitting additional roof light to the back of the loft bedroom (as per drawings attached) to allow more natural light in.