Ultima United Ltd. engages in the development of residential house and apartment units. It operates through the Rental Properties and All Other segments. The Rental Properties segment includes rental income on rental properties at Cannington. The All Other segment focuses on the planned development of residential land in Bentley, Tellus Villas in Japan, and Northbridge. The company was founded on February 13, 2007 and is headquartered in Como, Australia.