The owner of downtown's Riley Towers apartments is working on plans for a 5-story expansion at 225 E. North St. that would add 54 apartment units and more than 4,000 square feet of retail space. Barrett & Stokely Inc., which bought the 525-unit Riley Towers in 1993, wants to include street-level retail along North Street with the rest of the first floor and all of the second housing 79 parking spaces. The third through fifth floors would house a mix of one- and two-bedroom apartments with balconies. The new building would be across the street from a portion of the Cultural Trail. The project is being designed by Browning Day Mullins Dierdorf Architects. Riley Towers, which includes two 30-story towers and a 16-story building, is about 90 percent occupied. You can check out a PDF with maps and elevations here. More details are here.