Hi There!
We are planning to renovate our bathroom and possibly add an ensuite by combining the toilet space and taking some of the BIR.
We would like to do the renovation ourselves (where possible) and this would be our second room renovation (laundry already completed).
The challenge we have is we already have a small bathroom and the only way we can create an ensuite is to cut the BIR in one bedroom and link it. We want to avoid window or major wall moves so that limits us to the configuration. Below is our current bathroom layout

And here is what we have thought up so far. I know it's a little funny with the corners, but the idea was to maximise the flow of the ensuite whilst keeping it as compact as possible. We would rather not use up the whole BIR and do not want to move windows so the wall positions below are really our only option.
It would be great to get your opinion on how we can lay the rooms best to maximise space. A shower over bath would be ideal in the main bathroom though open to suggestions if it is really needed these days?

Any comments/feedback greatly appreciated