The basic forms of tenure can be subdivided, for example an owner-occupier may own a house outright, or it may be mortgaged. In the case of tenancy, the landlord may be a private individual, a non-profit organisation such as a housing association, or a government body, as in public housing.
Surveyss used in social science research frequently include questions about housing tenure, because it is a useful proxy for income or wealth, and people are less reluctant to give information about it.
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