Am thinking of putting up a trellis in backyard using polycarbonate material so as to have a wet Kitchen. It will still be an open space with a roof above and not enclosed with any surrounding walls. Understand that there is a guideline of 2 meter setback required from the boundary. However, at the back of my house, I do not have any neighbors but facing back of a school with two tall fences between us. My question is where and how can I apply for approval of such work and if the authorities allow for waiver of guidelines for setback?