You have a lot of space here. Instead of the pedestal sink, look for a nice vanity. You can change the mirror to something larger and more modern. As for the lights, you could have sconces or two pendants on each side of the mirror. I am assuming that the tile stays. Otherwise, you can pick any tile.

It small But your cabin sink unit is a good idea as you have storage space and it looks neat. I have changed my bath many times to shower unit and it has leaked every time, some times it has been the plumbers fault or bad design then it was a visitor who let the water spill while showering the last time it flooded the insurers wanted the bathroom TANKED! meaning waterproof walls and floors. This is done by an experienced plumber contractor of repute! as the insurers said too many claims from too many people with bad waterproofing. the insurer said they would not insure again or any other clients who had not got their bathroom water proofed by expert plumber fitters. SO I have gone back to the Bath with a shower enclosed and found it tops for waterproof.

We also bought our house before babies - but I can now tell you they usually are mainly in the tub yrs1-8 maybe even 10 or 11! We opted to put both a tub (with an electric shower) and a walk-in shower / wet room type arrangement in the main bathroom. Seems like a lot in 1 place but works for us.

Hey rinked, Thanks for the idea. I had considered that before, but wan't sure about taking quite that much out of the room. It would be an extra 2-300mm but as per your sketch I hadn't thought about leaving the nook behind the door which lessens the incursion (and in the bed room that space could be used for storage too). We are moving the soil pipe to the side of the house to allow for the bifold downstairs, so the toilet on the outer wall as per your sketch would really be better. Of course we could use a pump or so, but that's not ideal. Bath drainage could also run out that side too. We are completely renovating the room, everything is coming out and it will be tanked and retiled etc, so seams aren't an issue. My main consideration for having the toilet and vanity on the other wall is to perhaps conceal the toilet with a false wall, and also so that the light from the window (extremely bright as south facing) isn't to the side when looking in the mirror. Thanks again, lots to think about! EDIT: Mocking it up, it could look something like below...