Dear All, We are planning to replace an existing flat roof over the garage with a pitched roof inline with the existing roof with two velux windows. We have a chalet style house the garage is joined to the house and measures 7m x 2.8m. The space within the new pitched roof over the garage would be used as an en-suite bathroom. Would we require planning permission as the existing roofline would be maintained and the volume increase would be height only? Many thanks for all those that can help me on this matter.