I am hoping to build a garden office. The only problem is that planning permission is required where the office "would be nearer to any highway than the nearest part of the original house (unless there is 20m between the building and the highway)" ie where the office is positioned between the house and the highway and the office is within
20m of the highway.The problem is that there is a footpath that runs behind the house. The footpath is less than 20m from the proposed site for the office and so it seems to me that I would need planning permission.
Am I right?