Initially, the program will focus on five commercial corridors, and of them, the effort on Greenmount Avenue between Eager and 29th streets is farthest along. It's charette was held this week, and the city has assembled some data to illustrate the problems at hand. On the plus side, the southern end of the corridor brushes up against the successful Station North Arts District, and the northern end abuts the relatively bustling Waverly commercial district. The area has also seen some substantial development in recent years. The strikingly attractive Lillian Jones Apartments, a 74-unit, affordable development in the Johnston Square neighborhood, sits just to the south of City Arts Apartments, which offers subsidized units for artists as well as gallery space. Adjacent to it are rows of rehabbed homes and the new Baltimore Design School. A bit farther north, in the Barclay neighborhood, dozens of homes have been built or rehabbed in recent years.