For new non domestic buildings, including schools and health buildings, I propose a 20% reduction in greenhouse gas emissions from 2010 Part L requirements.
Ar gyfer adeiladau annomestig newydd, gan gynnwys ysgolion ac adeiladau iechyd, rwy'n cynnig 20% o ostyngiad mewn allyriadau nwyon tŷ gwydr o ofynion Rhan L 2010.