Hi, need some urgent advice please. My neighbour is building a terrace that abuts right onto my garage roof, but is building the one wall of his terrace ON TOP of the one wall of my garage. And it is a wall that eventually i will be removing the top part of (exactly what he’s building on) to put my own terrace there. He reckons it’s fine because my garage wall is in line with where his property ends. Who is the right authority to go to (Aude/Limoux/Carcassonne), to ask for an inspection and decision on this? I need to move quickly… Thanks all.