Plans, drawings and other material submitted to the local authority are protected by the Copyright, Designs and Patents Act 1988 (section 47).
Gwarchodir cynlluniau, darluniau, a deunydd arall a gyflwynir i'r awdurdod lleol gan y Ddeddf Hawlfreintiau, Dyluniadau a Phatentau 1988 (adran 47).