Found a few ideas from the houzz bathroom section What a fantasy! I imagine you could actually fake a window with a view of Central Park using a backlit panel - sort of thing usually seen used in shop fitting but could just as well suit a windowless room. Bottom picture reminds us a huge mirror doubles the size of a tiny room, there are so many lovely bathrooms out there, especially if you like a bit of Italian style and have a decent budget. Got to get a top quality contractor to do the work because a leak from a penthouse shower could damage a lot of other peoples homes.

Hi ianthy. Thank you! It was approx. £5,500 on fittings, tiles, lights, etc, plus bathroom fitter and design.

Thank you for your response. I've had two quotes and they were very different! I am in London so probably top end of pricing then however wanted to get another opinion to hopefully shed some more light on average pricing.

As Jonathan says, you start with the Soil pipe, and if you've agreed with your bathroom fitter that he's able to put the pipe across the wall behind the toilet and under the bath to get to the outside wall, then that's fine, but if not, you really need to discuss it with a professional. There are many reasons and regulations that you need to stick to with regards placement of soil pipes, because sometimes you need access to unblock them. When designing a bathroom, it is important to know where you have to have some items and then decide where you can put the other items that you want. Check the soil pipe situation as this dictates where everything else can go. I suspect unfortunately, that if you can't solve the soil pipe problem and the toilet needs to go on the outside wall ( which is the normal place for it ), then you may have to have a re-think and possibly change what you have purchased. I've tried to have a re-jig with what you've purchased and moving the toilet to it's normal position, but i can only make them fit if you do what Jonathan suggests. Even then, I would suggest that the door be moved along the wall to accommodate the tall unit. You will have pipework from the vanity that you need to box in, it can go under the bath, but at least it's just water not the soil pipe. I would have also considered a bath to fill the whole gap of 2000mm not a 1700mm, but you can use the gap to build a space at the end both covering the pipes and giving you somewhere to stand toiletries. The taps for the bath aren't marked, so i'd probably put them on the bottom end nearest the vanity on the flipped plan below.