Er bod yr amodau iechyd yn gyffredinol yn parhau’n sefydlog, mae ehangu’r aelwydydd estynedig fel y gall mwy o bobl gwrdd yn nhai ei gilydd yn dderbyniol cyn belled ag y parheir i gadw at y gofynion:ni chaiff neb fod yn aelod o fwy nag un aelwyd estynedig, ac eithrio plant sy’n byw mewn dau gartref (er enghraifft am fod eu rheini wedi gwahanu a bod ganddynt warchodaeth ar y cyd)rhaid i’r holl unigolion mewn un cartref berthyn i’r un aelwyd estynedigrhaid i holl oedolion pob aelwyd gytuno i ymuno â’r un aelwyd estynedigunwaith y bydd aelwyd estynedig wedi’i ffurfio, chaiff neb adael yr aelwyd estynedig i ffurfio un newydd
Whilst the overall public health conditions remain stable the expansion of the extended households to enable a greater number to meet at one another’s houses is acceptable subject to the continued requirements that:no person can be part of more than one extended household, with the exception of children who live in two homes (for example because their parents have separated and have joint custody)all individuals in one home must belong to the same extended householdall of the adult members of each household must agree to join the same extended householdonce an extended household has formed nobody can leave the extended household to form a new one