(c) sites where a relevant notification provision was complied with before 31 July 2014 and building work commenced before 31 July 2015.
(c) safleoedd lle y cydymffurfiwyd â darpariaeth hysbysu berthnasol cyn 31 Gorffennaf 2014 ac y cafodd y gwaith adeiladu ei gychwyn cyn 31 Gorffennaf 2015.