Sun America leases former Thorne's building ALLIANCE Sun America is leasing the former Thorne's grocery store to use as a warehouse for its commercial bakery and food service products. The space, located on South Union Street, was purchased in August for $500,000 by Alliance Ventures, a property development company, which is renting the property to Sun America. Michael Claxton, senior vice president of Sun America, said the company's growth over the last several years led to the decision to lease the nearly 156,000-square-foot space. "We've expanded our manufacturing footprint, and because of that I've had to move to using some outside warehouses," he said.