There are steps that must be followed when considering an application for prior consent, and sufficient time periods prior to commencement of work must be allowed before consent can be granted.
Mae camau y mae'n rhaid eu dilyn wrth ystyried cais am ganiatâd ymlaen llaw, a rhaid sicrhau bod digon o amser cyn cychwyn y gwaith er mwyn i ganiatâd gael ei roi.