The European Typology of Homelessness and Housing Exclusion (ETHOS) distinguishes four types of homeless persons: 1) roofless people, 2) houseless people, 3) people living in insecure accommodation and 4) people living in inappropriate accommodation.
Evropska klasifikacija brezdomstva (ETHOS) loči štiri skupine brezdomcev: v prvo uvršča osebe brez strehe nad glavo, v drugo osebe brez stanovanja, v tretjo tiste, ki prebivajo v negotovem, in v četrto tiste, ki prebivajo v neprimernem bivališču.