I am in the process of applying for planning permission for my father in laws new garage and covered walkway, its a definite planning application as it is alongside the road in the front of the house (actually the old sheds burned down in a fire and we are replacing) I know it will need building regs as its outside the 30m2 rule and roof is higher than 3000mm at the front (single pitch), my question is tho, its a low spec build, timber frame and timber clad with a tin roof, that's what's going in for planning, in relation to building regs, what are we trying to satisfy for a structure like this??? not planning to insulate is this ok??