Can someone tell me what you can build regarding decking before you need planing permission. Can you build the frame and bolt a joist frame to the brickwork of the house below dpc or do you need to need to leave a gap. If you need to leave a gap between the joist and wall can someone tell me why. ![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)