A reasonable transforming rule is to prevent plumbing within the comparable footprint if achievable; it minimizes high priced re-routing

https://tiny-wiki.win/index.php/Uncertainty_and_Mesa_Bathroom_Renovations:_Insights_from_Phoenix_Home_Remodeling

A real looking reworking rule is to save plumbing inside the identical footprint if imaginable; it minimizes costly re-routing and decreases construction time and mess.