Morningside Heights Community Coalition pressures Columbia to preserve rent-regulated units Morningside Heights Community Coalition pressures Columbia to preserve rent-regulated units Joao Santos / Staff Photographer In the face of luxury real estate development and rising rent prices, the Morningside Heights Community Coalition sent a memorandum to University President Lee Bollinger and several Columbia officials on Feb. 1, calling for the institution to preserve the rent-regulated units in its residential buildings as a source of affordable housing for the community. Local residents feel that the preservation of rent-regulated units is vital not only to provide much-needed affordable housing but also to maintain the neighborhood’s diversity and sense of community.