George Wimpey plc formed from a merger of McLean Homes and Wimpey Homes, George Wimpey has expanded to take in two smaller but respected developers, Laing Homes and McAlpine Homes. George Wimpey plc is a housebuilding company based in London England. It also has operations in the United States. Across the Atlantic, its Morrison Homes unit builds detached homes a year. Morrison Homes builds in Arizona, California, Colorado, Florida, Georgia, and Texas and offers mortgage and title services.