you need a planning consultant to manage the application. They swim in the same circles. Architects are next to useless when it comes to planning, and pretty much everything else...
your not measuring it right. from the outside of the handle parallel to the wall into which the window is fitted. Not at that angle.
Doesn't look wide enough, had to use a flying mulion on one of ours (1100 width).
not that great, corridors, no lounge, expensive flat roof box tacked on back.
Are you planning to spend £4-5k m2 to build it as that is an expensive build.
it hasnt got anything with a wow factor.
thinking more on the cooling setup.
Would a dedicated 'cooling' cylinder make sense ? In our setup we have 120m2 of ufh pipes to cool then 7 fancoils which adds up to a lot of piping. would it be more efficient for the ASHP to cool down a dedicated cylinder then spin this cooled water through the fancoils/ufh via the cylinder heat exchanger?
there has to be a tray installed above lintels so water isnt an issue.
You dont want to build in cold bridging where you dont have to, so the thermally broken is far superior.
warm roof better, harder to build correctly. Issues if not detailed correctly. Need more height 200mm
Cold roof, easier to build, just leaks warm air if not done correctly, doesnt need extra height.