A multifamily or single-family attached development providing a minimum of five new housing units created through any future municipal rezoning or Zoning Board action, use or density variance, redevelopment plan, or rehabilitation plan that provide for densities at or above six units per acre is required to include an affordable housing set-aside of 20% if the affordable units will be for sale and 15% if the affordable units will be for rent. This requirement does not give any developer the right to any such rezoning, variance or other relief, or establish any obligation on the part of Milltown to grant such rezoning, variance or other relief. No subdivision shall be permitted or approved for the purpose of avoiding compliance with this requirement.