A major investment and real estate development company in the United States, owned by Ross Perot Jr., son of the former presidential candidate and well-known American businessman, is building a 500,000-square-foot distribution facility on spec in the Balzac area, the Herald has learned. Hillwood Investment Properties is partnering with Calgary-based Highfield Investment Group on the High Plains Industrial Park development and it represents the Dallas-based company's first venture into the Canadian commercial real estate market.