The proposed redevelopment of the Harford Mall, which is expected to bring 249 new apartments and a four-story parking garage to part of the mall’s parking lot, aims to take a “Bel Air-inspired” approach to its pedestrian streetscape, according to the project’s landscape architect. The project was introduced to the Bel Air Planning Commission last year after the mall’s Tennessee-based owners, CBL Associates and Properties, said the redevelopment is the best investment for the long-term viability of the mall.