The purchase must be made to facilitate development of the land by a third party (that is, someone other than the person making the compulsory purchase order).
Rhaid i’r pryniant gael ei wneud i hwyluso datblygu’r tir gan drydydd parti (hynny yw, rhywun heblaw’r person sy’n gwneud y gorchymyn prynu gorfodol).