Hi, Got a couple of damp issues on a new build property which is located on a hill. It is north facing but has a fairly large open aspect to the rear. I have 2 damp patches 1 at the rear that appears to go above the DPC (wavy damp line) and the other that is located next to a down pipe and small run off from a chimney stack. Any advice on the possible causes and how to fix it would be very much appreciated. Thanks.