The Welsh Government must ensure that new energy efficiency standards in new homes are sufficiently ambitious, and that changes to Part L Building Regulations are progressed with no further delay.
Rhaid i Lywodraeth Cymru sicrhau bod safonau effeithlonrwydd ynni newydd mewn cartrefi newydd mor uchelgeisiol â phosibl, a bwrw ymlaen â’r newidiadau i Reoliadau Adeiladu Rhan L heb ragor o oedi.