Fis Tachwedd diwethaf, ymrwymodd y cyn Weinidog Ynni, Cynllunio a Materion Gwledig Lesley Griffiths AC yn y Senedd y byddai'n ystyried a oes angen Arolygiaeth Gynllunio ar wahân i Gymru.
Last November the former Minister for Energy, Planning and Rural Affairs Lesley Griffiths AM, gave a commitment in the Senedd to consider the need for a separate Planning Inspectorate for Wales.