The Frank Lloyd Wright Conservancy has set up an ONLINE PETITION to help urge Phoenix in designating the David S. and Gladys Wright House (Arcadia, 1950) as a historical landmark. A unique residence created for Wright’s son, the house is at risk of demolition by developers. The spiral design predates the Guggenheim by six years and with its “concrete-block detailing, and interior design, the house was (and still is) considered to be one of Wright’s most ‘remarkable and praiseworthy’ efforts since Fallingwater.”
via ArchDaily
UPDATE (25 September 2012): On September 17, the Phoenix Historic Preservation Commission voted unanimously to recommend Landmark designation for the David and Gladys Wright House. More information here.