Sustaining tenancy programs assist tenants who are at risk of losing their rental accommodation to stay in their homes and therefore ‘avoid eviction and entry into homelessness.’ Tenant support programs may also help some tenants at the beginning of their tenancy by supporting formerly homeless people enter and sustain a new rental tenancy. 

Filtering is a process whereby the building of new, higher quality dwellings for higher- and middle income households may result in additional supply of dwellings for lower-income households. Theoretically, as properties age and their perceived quality drops, over time they trickle down through successively lower market segments, ultimately becoming a supply of ‘naturally occurring affordable housing’.

Very low supplies of rental housing in some parts of Australia have raised concerns about significant numbers of unoccupied housing as revealed by the 2021 Census, and have some local governments asking whether unoccupied housing can be redirected to the private rental market.