Where a Premises Improvement Notice is not complied with, or if there is a serious breach, premises can be closed by issuing a Premises Closure Notice.
Os na chydymffurfir â’r Hysbysiad Gwella Eiddo, neu os oes achos difrifol o dor-cyfraith, gellir cau eiddo drwy gyflwyno Hysbysiad Cau Eiddo.