Excel Development Group is moving ahead with plans to demolish four walk-ups in Kips Bay, though it’s not yet clear what will be going in their place. Michael Heletz, the head of Forest Hills based Excel, filed plans with the city earlier this week to demolish 339, 341 and 343 East 33rd Street, DNAinfo reported. A fourth building at 345 East 33rd Street, which records show to be owned by an LLC, was also included … [more]