As its original businesses were sold, Summa recast itself as a real estate developer, using the vast tracts of undeveloped land Hughes had amassed around Las Vegas as a starting point. In the early 1980's Summa Corporation supervised its holdings from leased office space in the Alexander Dawson building, owned by Girard B. Henderson of Alexander Dawson, Inc., in Las Vegas. It was perfect for security reasons, since it had two underground floors. In September 1994, Summa Corporation was renamed The Howard Hughes Corporation, both to honor Howard Hughes and to fulfill his original intentions of keeping his name on the business. In February 1996, Hughes's heirs sold the Howard Hughes Corporation to the Rouse Company for $520 million, plus half of any future profits from the company's undeveloped land holdings. The Rouse Company was, in turn, acquired by General Growth Properties in November 2004. A new company named The Howard Hughes Corporation was spun off from GGP in 2010 and is now a developer of master-planned communities. References Holding companies of the United States Howard Hughes American companies established in 1972 Holding companies established in 1972 Manufacturing companies established in 1972 Technology companies established in 1972 Holding companies disestablished in 1996 Technology companies disestablished in 1996 1972 establishments in Nevada 1996 disestablishments in Nevada Defunct manufacturing companies based in Nevada