Update 4.36pm: Housing associations are calling on the government to free up land to build more social housing.
2,300 new long term social homes were delivered by housing associations in 2017 - that is one in every three.
The Irish Council for Social Housing says its goal is to grow its housing stock to almost 50,000 over the next five years.
But President of the ICSH and CEO of the Peter McVerry trust, Pat Doyle, says they need more land.
He said: "The big issue going forward now will be land acquisition. The Government has said that money won't be a problem in relation to schemes for building but the land will become an increasing challenge.
"I suppose we need a ten year plan really to start looking at acquisition."
Earlier: Third of long-term social homes delivered by housing associations last year
One in three new long-term social homes in 2017 were delivered by housing associations.
A report out today by the Irish Council for Social Housing shows a ten-fold increase in capacity over the past five years.
They say they have been "working flat-out" in recent years to rebuild the country's housing stock.
ICSH Chief Executive Dr. Donal McManus describes who they have built homes for.
"Last year our sector collectively provided over 2,300 homes, social housing for families, elderly people, people with disabilities and homeless," he said.