Dublin City Council's head of housing says plans for a major development at a site on Oscar Traynor Road are 'back to square one'.
Brendan Kenny says revised plan could take up to eight years to implement.
Dublin City Council has expressed “serious reservations” over the revised plans for the housing development in Santry.
On Monday, councillors approved a plan which would see 80% of the land used for social housing, with 20% for affordable housing.
A previous deal would have meant 50% of homes sold by Glenveagh developers, 30% for social housing and 20% for affordable housing.
However, councillors last November rejected the bid to sell the land to the private developers.
Following Monday's vote, Sinn Féin TD Denise Mitchell was among those who welcomed the latest development.
She said it would be a huge boost to people "who’ve been locked out of the housing market because of the ridiculous cost of buying in the area", as well as those on the social housing list.
However, DCC head of housing Brendan Kenny told The Pat Kenny Show that the latest vote will delay the project by several years.
He said: “Back in January 2017, the councillors approved a plan for the Oscar Traynor Road site. We as the Executive moved ahead and implemented that.
“With that mandate, we moved ahead with a very extravagant public procurement process and ended up with a fair bid from Glenveagh, one of the top developers in the country.”
'A blow to our housing programme'
Mr Kenny said construction workers would have been on site by the end of 2021 if the previous plan was approved.
Instead, he says the change means there's been a 'blow to our housing programme'.
He said: “A new scheme was proposed by the city councillors, and approved at the City Council meeting on Monday night. That’s fine - we can do that, no problem. But it’s back to square one - we have to start afresh.
“According to our experience, this could take five to eight years before we get to the stage we were previously at.
“The second thing is that the Glenveagh plan is really a quality plan… a really, really good project. If we were to try to copy this plan, it will certainly cost us much more."
He argued that it's not the case the project will be less expensive if done directly by the council.
He said they won't be able to get the 'value' they'd get from private developers, and the quality of the homes will need to be reduced to "keep the pricing down".
