Ar hyn o bryd, yr Arolygiaeth Gynllunio ar gyfer Cymru a Lloegr sy'n gyfrifol am wneud penderfyniadau ac argymhellion ynghylch amrediad o faterion sy'n gysylltiedig â chynllunio defnydd tir.
At present, responsibility for making decisions and recommendations on a range of land use planning-related issues lies with the Planning Inspectorate for England and Wales.