A proposed 32-story building in downtown Denver moved closer to construction with the announcement of the signing of a land lease. The building on 15th Street between California and Welton streets will be developed by a partnership of Patrinely Group of Houston and USAA Real Estate Company. The building will contain about 606,500 square feet. Once site and concept plans are approved by the City and County of Denver construction is scheduled to begin in early 2018. A second phase may include a hotel.