The change was made by the Housing (Right to Buy and Right to Acquire) (Limits on Discount) (Amendment) (Wales) Order 2015.
Gwnaed y newid hwn o dan Orchymyn Tai (Hawl i Brynu a Hawl i Gaffael) (Terfynau'r Disgownt) (Diwygio) (Cymru) 2015.