Mae Llywodraeth y DU wedi gweithio'n agos gyda Llywodraeth yr Alban a Llywodraeth Cymru i gyflwyno'r mesurau newydd ynghylch siediau ar yr un pryd, sy'n golygu y bydd y cyfyngiadau mewn grym ar draws pob rhan o Brydain Fawr.
The UK Government has worked closely with the Scottish and Welsh Governments to introduce the new housing measures at the same time, meaning that the restrictions will be applied across the whole of Great Britain.