Our Bridge of Don cloakroom gained a shower by using space from the neighbouring cupboard. The basin and toilet were repositioned as part of the same redesign. It is a useful example of looking beyond a bathroom’s original outline when the required fitting cannot comfortably sit inside it.
Before deciding to borrow space, compare plans of both rooms together. Mark the dimensions needed for the proposed enclosure and list what the cupboard currently holds. Try a shallow change and a deeper one to see where the extra width makes a real difference. Ask which walls and services need checking before either version can be agreed. The right amount to borrow is the amount that makes the cloakroom work while leaving a sensible plan for the belongings previously stored next door. That comparison gives you a clearer choice than simply asking whether the wall can move.
