Bathroom layout need help please

[Renovations33]

Need help.
Want to place a bath, shower, sink and loo.
Bathroom is small.
Size 270cm by 225cm.
On the 225cm wall is a window running across the wall (highlighted in red). The opposite side is a door that is on the corner.
Please see image.
Not fussed on bath size as mainly for younger kids. Would like a largish shower.

Is there an existing soil pipe that dictates placing of toilet?

So the side wall on left is an outside wall and the top corner is where the loo is at the moment.

Bump

do you definitely need a separate shower or can you have a shower over the bath? the latter would be much better given you have a small space.

for example

this bath with the shower in the bottom left corner and the bath under the window.

https://www.diy.com/departments/cooke-lewis-adelphi-white-curved-acrylic-p-shaped-left-handed-shower-bath-l-1495mm-w-800mm/98742_BQ.prd

loo remains in the top right corner.

basin in the bottom right corner opposite the door as you walk in. with a big cupboard under it to give lots of storage.

Bath with shower over it, toilet next to bath and sink at right angles (scribbled square), toilet and sink set into cupboards for storage. Towel rail/ rad on wall between bath and door.

I think that the op is knocking a separate bathroom and loo together, which explains the difference in shape to what she has posted. Is this right? Also will you be keeping or blocking up the window in the loo? Otherwise it might make shower placement tricky

Also it would be useful to have the wall measurements for the wall that the door is on