Thank you Sarah, your time and ideas are much appreciated. I like the shower size but I would be a little concerned about the side wall ´blocking‘ the room as you enter. But it’s a new way of looking at it so I will reorganise the boxes! Thank you 🙏

You don't have to have a wall there, it could be a glass screen

Your bathroom is a really good size, and a rectangular shower will be fine, especially if youre going for a frameless screen - you could always go for a slightly narrower tray if you’re worried about it, though I think wider is better functionally.

If the room is 2000 wide and your bath is around 1700 long then the vanity unit shouldn’t obscure it very much. Many standard 800 vanity units are only 400 deep, which is slightly less than you mention - if you choose one less than 460 it will project less into the room. Style and colour also have an influence - a lighter colour in a slimmer style will be less noticeable than a chunky unit in a dark colour.

Hi Is there really no way you could put the shower where the bath is? Shower could then be walk in with only one panel to keep clean You could have a corner bath where you have put tge oentagon shower. Or if it is already bought put it opposite the windows? I wouldnt like a shower over a window Too much to keep dry. Surely better to have low things under the windows? In any case: If you have a walk in shower with frameless panels it would appear less crowded The shower tray can be floor level to avoid any trip hazard if it ends up on the way to the loo in the night. But beware flooding if a small shower with no door. Floor may need to be tanked as in a wet room

Thanks for your replies. I know it’s not an obvious layout but I already have a shower in my ensuite so the bath is there for relaxing and taking in the views from the open window.

Having laid everything out, yes, a rectangular shower tray would work. 800 x 1200 is probably better than 900 x 1200 but may be a bit on the tight side for broad shouldered people! And yes, the floor will be tanked. I did wonder about making it a wetroom but thought it might be at odds with the traditional feel.

My next challenge is lighting. Am I right in thinking 6 would be enough, or is 8 better? (Almost 9 sq m). It’s proving tricky to space them. Are there any ‘rules’ ? From what I’ve read I should avoid having them close to the edges (light wash?), directly over the bath (blinding?) or over the basin (shadows?) Will that matter so much if I also have a mirror light? The downlights will have replaceable GU10 bulbs as I don’t want to sealed units.

Thanks so much for your ideas, it really helps