Despite the now well-established link between homelessness and mental ill health [1], little is known about whether or not the homeless mentally ill are receiving appropriate care and support or, indeed, what is the most effective way of delivering services to them. Research in this area is needed to address, among other things, persistent claims about how health and social services may be failing to provide adequate care for this population [2-4]. In the fIrst part of the present study (see the preceding article), it was reported that 41 percent (165/401) of single homeless adults in Belfast had a mental health problem. A signifIcant proportion had sufficiently poor levels of functioning and mental morbidity to suggest that they were not in contact with appropriate, if any, services or that existing provision of care was inadequate. Here we describe part two of the study, which was undertaken to assess the health, social care, and accommodation needs of 164 residents with mental health problems, with a view to estimating and planning future service requirements.