We have too many external doors and LOML wanted to replace this door with a double glazed unit filling the entire space. (The small window is an original Georgian window and is staying)
And from inside
Then I saw the comment about habitable rooms and realised that we couldn't make this non-opening as was the original plan.
But to maintain the idea of maximum glazed area, I was wondering what ideas you guys had. One could envisage a hinged glass door like you see in shopfronts but those don't seal.