Use. Residential units in the zone are subject to inclusionary affordable housing standards pursuant to "low- and moderate-income housing requirements" below and shall be permitted uses in the inclusionary zone district in addition to those uses already permitted by the underlying zone district. To permit residential development over retail, service and office uses for sites not directly fronting on Howard Boulevard as a standalone town center type of development. To require a maximum density of 15 apartment dwelling units per acre. Other residential, retail, service and office uses would follow the current zone standards.