To do this however, planning builds on years of law, legislation and policy and can be a confusing and difficult topic for the average person to understand.
Er mwyn gwneud hyn, mae cynllunio yn adeiladu ar flynyddoedd o gyfraith, deddfwriaeth a pholisi a gall fod yn bwnc dryslyd ac anodd i'r person cyffredin ei ddeall.