If the land acquired by the housebuilder is more than the permitted area, as long as the other conditions above are fulfilled, partial relief may be claimed.
Os yw’r tir y mae’r adeiladwr tai yn ei gaffael yn fwy na’r arwynebedd a ganiateir, yna os yw’r amodau eraill uchod wedi’u bodloni, gellir hawlio rhyddhad rhannol.