Hundreds of people have gathered in the city centre for a march for the homeless.
It marks a year since Jonathan Corrie was found dead in a doorway near Leinster House. He had been sleeping rough on the streets.
Figures show, in Dublin, almost 3,500 people have no bed of their own to sleep in at night.
Fr Peter Mc Verry works with the homeless with his charity the Peter McVerry Trust. He said "in the last four months of this year, an average of 73 families a month have become homeless."
"The problem is getting worse and worse and worse", he believes.
Dublin's Lord Mayor, Criona Ni Dhalaigh, said "what we need to do is prevent people from becoming homeless and we still haven't brought in those measures."
"What the government needs to do is act on supply, and also bring in short-term measures such as rent certainty".
Meanwhile, The Taoiseach has again ruling out increasing rent supplement as part of the response to the housing and homeless crisis.
Homeless agencies say a year to the day since the death of Jonathon Corrie in Dublin, there's no sign of an improvement.
In the Dáil Sinn Féin's called for the declaration of a national housing emergency, while Fianna Fáil wants rent supplement increased.
But Enda Kenny says that's simply not going to solve this, and believes the issue of housing supply is what needs focus.
