A 10-story, 250,000-square-foot office building, 10000 Avalon, is expected to open later this year at the corner of Old Milton Parkway and First Street. The building, which is the second and final office building in Avalon, will also include amenities, such as a 2,535-square-foot fitness center, a 3,615-square-foot outdoor living room, and 455,000 square feet of retail and restaurant space. www.8000avalon.com