A bathroom is mostly a question of where the water can go, and in Hinckley the answer depends on whether the front of the house is protected.
On modern housing the soil stack is internal and moving a bathroom is easy. On the late Victorian stock near the centre it runs on an outside wall, and if that wall faces the street inside a conservation area then altering it becomes a conversation with the borough rather than a decision on site. Behind the building line there is far more freedom, which is why most of the bathrooms we relocate end up at the back.
Floors are the second constraint. Victorian upstairs joists were sized for a bedroom, not for a filled bath on a tiled floor. Where a waste run means notching or drilling them there are permitted zones, and the wrong cut in the wrong place is both common and serious. We will move a fitting a foot rather than cut a joist where it must not be cut.
Ventilation is treated as an afterthought and then causes years of trouble. An extractor discharging into a roof void puts the moisture back into the building, and in an older Hinckley roof it finds the timber. We duct it outside properly.
Tanking is not optional on a walk in shower. Tiles and grout are not a waterproof layer. Our bathroom installations page sets out what a full refit involves.