Where authorities have failed to compel landowners to carry out their duties, as in Carmarthenshire, landowners have not claimed the grants that would otherwise be due to them.
Pan fo awdurdodau wedi methu â gorfodi tirfeddianwyr i gyflawni eu dyletswyddau, fel yn Sir Gaerfyrddin, nid yw tirfeddianwyr wedi hawlio’r grantiau a fyddai’n ddyledus iddynt fel arall.