Up to 1,575 new homes can now be built on underused land in the city. But the rezoning of industrial land falls well below the original plan to provide 3,500 houses and apartments.
And there is now enough land rezoned in Dublin city to build 52,000 homes, but all these sites are at different stages of development.
Dublin City Council has rezoned industrial lands scattered across the city to allow residential development. However, the scale of the plan was slimmed down after local objections.
The two biggest sites up for rezoning were in Santry, which had the capacity to build 1,200 homes. These were pulled due to opposition as residents were worried about high-rise developments and traffic blockages.
The Department of Education had also said if the rezoning had gone ahead the school places in the area would need to be reviewed.
Another large site in East Wall was withdrawn after the Office of the Planning Regulator said the land was set aside for a Eastern Bypass under Dublin Bay, which may be built in the future.
Of the 17 sites councillors ultimately voted on, 16 of them were rezoned. The exception was the proposal to rezone the Greenmount Industrial Estate in Harold's Cross.
A number of sites in Coolock, Ballyfermot, Drimnagh and Crumlin will have to have master plans before planning permission can be applied for. The zoning on those sites was changed to mixed use to protect existing jobs.
The original 20 sites making up 55 hectares were intended to be rezoned for home-building.
Assuming you get 100 units per hectare, and half the land would be used for residential and the other half for commercial, the sites had the potential to provide 3,000 to 3,500 additional homes in the city. From the original plan to rezone enough land to build 3,500 homes though, the final amount ended up at 1,575 units.
The primary objection from councillors was that most of the planning applications would go straight to An Bord Pleanála as Strategic Housing Developments where the council would not have any say.
The council's management said there was an obligation to provide as much land for house building as possible in areas close to the city.
Dublin City Council chief executive Owen Keegan revealed there was enough land zoned in the city to build 52,000 homes.