In such cases the parties to the transaction are the original beneficiary as seller and the person acquiring the interest in the property as a result of the variation as buyer.
Mewn achosion o’r fath y partïon yn y trafodiad yw’r buddiolwr gwreiddiol fel gwerthwr a’r unigolyn sy’n caffael y budd yn yr eiddo o ganlyniad i’r amrywiad fel prynwr.