Loose the rad,put in underfloor heating and look for one of the angled compact corner WC's. I think they are about 790 x 400 - think about it in the back left corner with a small wash basin on the left wall , again you can get some as small as 250 x500. (The obvious place for the shower is the back area but it will be awkward moving past loo and sink ). The space as you come in would be your shower area- , drainage could go to middle of the room ,you might need to build up under WC pan slightly and remember not to put underfloor heating under area where pan is bolted down. You could back the door with a sheet of acrylic and make sure you have a plastic seal on the bottom or a linear drain by the door. Depends on how often you think you will use it ?

Hi - I can understand what you mean about mosaic tiles looking like a swimming pool. However - how would you like to select colours and design a custom mosaic tile blend for your floor and walls for your shower area to fit in with the colour way of your room? Check out our 'Create Your Own' Tile Palette online design tool where you can choose tile colours and also see how different grout colours will work with your mosaic. All our mosaics are handmade in Scotland and will cost less than your £150/m2. Here is the link http://mosaicshack.com/custom-blender/ Have a look it's fun to use.

Also bear in mind that we had to have a raised shower ‘step’ in our loft room because the pipes need a drop and there wasn’t enough room under the floorboards to do this so you might possibly end up losing more head height.

Hi Matt, sounds like you have enough space and it’s always a good idea to have a bath and a shower if you can fit both. Our advice is to keep everything concentrated on the left side. Please see a quick sketch we have made for you to demonstrate how the layout could work. We would be happy to help you out further with your free personalised bathroom design, supply of sanitary ware and tiles and the installation of your new bathroom. Just get in touch and we can organise a professional survey for you to discuss the design further.