Over 1,500 families on waiting lists were provided with homes by non-profit housing associations last year.
And in a further sign of the growing pressures on the rental sector it has emerged the majority were already in the queue for a local authority dwelling.
James Harold from the Clúid Housing organisation, told the Irish Independent that although 1,550 families now have a home thanks to non-profit housing associations, there is still "much work to be done."
Meanwhile, there is growing speculation the government will introduce some form of rent control in the coming weeks.
It is understood landlords may be incentivised to keep rental costs at an agreed level in return for greater tax concessions.
Latest figures released by the Irish Council for Social Housing - which represents 270 non-profit associations nationwide - show that round 90pc of tenants for "re-lets and first-lets" of new homes came from local authority waiting lists.
The lack of rental properties becoming available was reflected in the fact there was very low tenant turnover. Overall re-letting of houses was under 5pc.
"Our survey shows the important gap filled by housing associations in providing social housing for families, older persons, people with disabilities and formerly homeless households.
Last year, our members housed 1,550 families on housing waiting lists," said Donal McManus, Council CEO.