Written Statement - Building Regulations in Wales - Consultation on changes to Part L (Conservation of fuel and power) (31 July 2012)
Datganiad Ysgrifenedig - Rheoliadau Adeiladu yng Nghymru – Ymgynghori ar y newidiadau i Adran L (Arbed tanwydd a phŵer) (31 Gorffennaf 2012)