Serch hynny, rydym hefyd yn cydnabod yr effaith y gall niferoedd mawr o ail gartrefi a llety gwyliau hunanddarpar ei chael ar y farchnad dai a’r farchnad rentu leol ac ar gynaliadwyedd cymunedau lleol. Mewn rhai ardaloedd, fe allen nhw beryglu cynaliadwyedd y Gymraeg fel iaith gymunedol.
However we also recognise the impact that higher numbers of second homes and self-catered holiday lets can have on local housing and rental markets and on the sustainability of local communities. In some areas they may compromise the sustainability of Welsh as a community language.