We have a dedicated web page for Breach of Planning Control with all the information and online form for you to report any breaches of planning.
Mae gennym dudalen we bwrpasol ar gyfer Achosion o Dorri Rheolau Cynllunio sy'n cynnwys yr holl wybodaeth a ffurflen ar-lein er mwyn i chi roi gwybod am unrhyw achosion o dorri rheolau cynllunio.