Siobhan, the black-and-white is showroom deco, right? Very cool. The checkerboard floor is vintage, but the combination of border, wall tiles, and stripes strike me as more contemporary. Point being that the fixtures look fine with it, so why not with yours? For the shower floor mosaic, you might consider something like this in whatever colors you plan to use:

East Kent Eco - again thank you for your input. As a pro I wonder if you could offer your thoughts on a couple of scenarios 1 - Leave bath where it is - what would be involved in moving the shower 4-6 inches to the centre of the bath? I did consider the P shaped bath and will consider your suggestion for a shorter bath to allow room for the toilet, but I currently had to put in a door stop to protect the shower door from the entrance door handle and I would be concerned about a rounded door being even closer. If I left the bath where it is I have a couple of options, turning the toilet and cistern 90 degrees to the adjoining wall - see above for the considerations there, or I have also considered switching the toilet and sink. I would put the sink facing the wall where the cistern currently is have a large-ish vanity from the base of the bath to the wall, and the if the toilet was where the sink is it would not interfere with the doors for the hot press as the seat would be considerably lower than the sink is currently thus giving me the better access I want. In this scenario the main issue for me would be the toilet would be facing the entrance door, a bit unsightly but if it gave me the space I want I think I could live with the compromise. 2 - A bit more involved, but I have also considered moving the bath sideways along the short length of the room, shower end over the space where the cistern is currently and moving the sink and toilet to the space where the bath is currently. I think this would allow me room for a vanity and maybe also a tall storage cupboard for the towels and linens currently in the hot press. The obvious concern with this is the shower spray in the direction of the hot press, if I got the storage I needed elsewhere in the bathroom I wouldn't be concerned about those getting wet, but would want to ensure I don't end up with a leak over the stairs. Access would also be an issue if repairs were required for the shower pump or the hot water system. You would have to step into the bath to gain access. Is there a solution to waterproof the cupboard?

If it was me, I would centre it and only silicone the back. I understand your concerns about water going down the side. Realistically, though, as you will only be washing your hands and maybe teeth in it, there is unlikely to be much water gushing about. To detract from the fact there is not as much space on either side of sink, I would have carpenter either wall mount or put legs on the cabinet so there is space underneath and the unit doesn't look too chunky!

We are adding a timber cladded utility to the back of out 1980's bungalow and I was hoping for inspiration and ideas