Hi - Mark here!
Just found BuildHub online after looking for thoughts on self-build mortgages etc.
My wife and I will be embarking on a self-build as soon as we can find a plot (which we think is imminent); hoping to appoint an architect rather than buy a plot with detailed planning permission so we can get exactly what we want. Have looked at Graven Hill a few times as it wouldn't be a huge upheaval for us to move there, but it's not for us.
We have renovated a few times before, including large extensions, but this time we're set on a timber frame system as we like the efficiency and time (any advice on which companies to use (or avoid, if allowed to say!) welcome).