c. no notification is required for the work (see regulation 12(6) of the Building Regulations 2010) and the work commences within three months beginning on 6 January 2025.
c. nad oes angen hysbysiad ar gyfer y gwaith (gweler rheoliad 12(6) o Reoliadau Adeiladu 2010) a bod y gwaith yn dechrau o fewn tri mis sy'n dechrau ar 6 Ionawr 2025.