A 6 storey apartment the emerging consensus is that; development is more sustainable if it produces a mixture of uses. segregation of land uses; encouraged in the past; is not relevant now. the trend back to mixed usage brings a number of potential benefits. it ensures vitality through activity and diversity. it makes areas safer. it also reduces the need to travel; making people less reliant on cars; bringing welcome environmental benefits. diversity of uses adds to the vitality and interest of town centers. different but complementary uses; during the day and in the evening can reinforce each other; making town centers more attractive to residents; businesses; shoppers and visitors (doe; 1995a).