There is no charge for Stage 1 of the process but there is a charge at Stage 2 - £50 for a written hearing or £100 for an oral hearing.
Mae’n bosibl na fydd enwi mannau cyhoeddus yn costio fawr ddim ac mae placiau’n costio ychydig gannoedd o bunnoedd ond gall cost cofebion a’r gwaith o’u gosod amrywio o £10,000 i £500,000 neu fwy.