Originally published on the closed forum March 2016. In submitting our planning application, I had purposefully had the external walls and roof depth drawn as 450mm thick, reasoning that this would let me investigate construction costs for a variety of different construction methods. First port of call was MBC, but our geographical location meant that was a non-starter for them. Next, I got in touch with Danwood, who were happy to travel and build on Orkney, but were not prepared to build