A proposal to sell council land to a developer in exchange for a development of nearly 500 social and affordable homes has been passed by South Dublin councillors.

The deal will see nearly 16 hectares in Killinarden, Tallaght, sold to developer Arden for €14 million.

The developer will build a total of 620 homes. A total of 60% of these homes will be affordable purchase for an average of approximately €250,000 each, while 20% will be social housing and 20% private.

The co-operative development body Ó Cualann will be developing the affordable units.

A protest was organised outside the council office by People Before Profit, claiming it was a sell off of public land.

Deputy Paul Murphy said that with the current model, affordable housing is sold onto the private market and should instead be sold back to the council.

However, only two councillors - one People Before Profit and one independent - voted against the deal.

A total of 27 voted in favour, while three Sinn Féin councillors present abstained.

Councillor David McManus of Fine Gael supported the deal, saying that the country is in the middle of a housing crisis and that affordable and social housing is needed now, not in ten years' time.