From that date, for a self-catering property to be classified as non‑domestic, it must be made available to let for at least 252 days in any 12 month period, and actually let for at least 182 days.
Rhaid i unrhyw ysgol fyrddio sy'n darparu llety am fwy na 295 diwrnod mewn unrhyw gyfnod o 12 mis hefyd gael ei chofrestru gydag AGC.