Table 1. The search strings.

Strings	Fields	Operationalisation
String 1	Tenants OR landlords	(private AND (tenant* OR renter*)) OR lodger* OR squatter* OR flatmate* OR (HMO* AND resident*) OR (HMO* AND tenant*) OR (private AND landlord*) OR (tenant* AND landlord*) OR (landlord*-tenant* OR tenant*-landlord*)
String 2	Housing	(housing OR home OR house OR flat OR apartment OR flat-share OR (hous* AND “in multiple occupation”) OR (rooming AND hous*) OR (boarding AND hous*) OR (Rooming AND hous*))
String 3	Method	(qualitative OR interview OR ethnograph* OR “case study” OR “case studies”)