Five landowners stand to benefit from the decision of the Government to designate 170 hectares in south Dublin as the centre for a new town.
Up to 8,000 homes as well as commercial and leisure facilities are expected to be developed at the site at Balgaddy/Clonburris, which is located between Clondalkin and Lucan.
The Department of the Environment said last night that the land was owned by: property developer Liam Carroll; Barkhill, the consortium that owns the Liffey Valley shopping centre; Kelland Homes; Treasury Holdings, and the Heapes family.
Part of the land is also owned by South Dublin County Council.
Barkhill is a joint venture between the developer Owen O'Callaghan and Grosvenor, the property company of the Duke of Westminster.
Treasury Holdings owns a 15-acre site which was originally envisaged as a town centre in Balgaddy. However, proposals put forward by the company to develop the land in recent years were turned down, most recently by An Bord Pleanála last October.
Following the decision by the Government to designate the Balgaddy/Clonburris site as a strategic development zone, South Dublin County Council will have to draw up a plan for the area within two years.
If the plan is ultimately approved, the local authority must grant permission for any development which is consistent with it.