Culture recurs as an important but under-investigated variable associated with resident outcomes in supported accommodation for people with intellectual disability. This study aimed to conceptualize the potential dimensions of culture in all group homes and describe the culture in underperforming group homes. A secondary analysis, using an inductive interpretative approach, was undertaken of a large qualitative data set from a study that had used ethnographic and action research methods to explore the quality of life outcomes for residents in 5 small group homes. Five categories were developed: misalignment of power-holder values with organizations espoused values, otherness, doing for not with, staff centered, and resistance. Differences from institutional culture are discussed, and the potential of the findings as a starting point to consider culture in high performing group homes and develop a quantitative measure of culture.