Thanks for your reply.
He only mentioned this out of the blue after submitting building regs plans which clearly show it as an Orangery extension opened up to the rest of the house (he's also specified heaps of insulation everywhere that's not glazed. etc.).
He mentioned that he had had...
I have hired a local Architect/builder firm to do planning/building regs for an extension to my house. Planning has now been granted and building regs plans submitted. But I had a worrying email from my architect saying that (in order to get the plans passed building regs) it may be necessary to...
