Abstract: The study attempts to carry out the determination of geoidal height using a geometric approach. This approach involves the use of GPS/levelling to determine the ellipsoidal and orthometric heights. South DGPS was used in acquiring GPS data, which were processed using South GNSS processor software for deriving ellipsoidal heights, while Leica Jogger modern automatic level instrument was used in acquiring leveling data, which were processed to produce orthometric heights.