 Thus, housing took up the western 51% of the block, facing Ninth and Columbus Avenues, while the Coliseum took up the eastern 49%, facing Columbus Circle.By October 1952, Moses said that builders were ready to start construction on the Coliseum, but he emphasised that the MSG arena was no longer part of the plan.In December of that year, the plan to build a convention center and two 12-story residential towers was submitted to the New York City Board of Estimate and Mayor Vincent R. Impellitteri.