We looked at a house today (DH's 1st viewing & my 2nd viewing) & are going to put an offer on it tomorrow. The master bedroom is large, some 17'5 x 14' & we would like to put an ensuite in it - how much space do you need for a small ensuite? The kind where you open the door & have a small sink infront of you, shower cubicle to one side & toilet to the other side? Roughly? Thanks