The Town and Country Planning (General Permitted Development) Order 1995 (the GPDO) was also amended to allow permitted changes between the new use classes, C3, C5 and C6.
Diwygiwyd Gorchymyn Cynllunio Gwlad a Thref (Datblygu Cyffredinol a Ganiateir) 1995 (y GPDO) hefyd i ganiatáu newidiadau a ganiateir rhwng y dosbarthiadau defnydd newydd, C3, C5 a C6.