These permitted development rights can be dis-applied within a specific area by an Article 4 Direction made by a local planning authority on the basis of robust local evidence.
Gellir datgymhwyso'r hawliau datblygu a ganiateir yma o fewn ardal benodol drwy Gyfarwyddyd Erthygl 4 a wneir gan awdurdod cynllunio lleol ar sail tystiolaeth leol gadarn.