The £250 million plan to transform Ballymun in north Dublin into a model town for the 21st century is in jeopardy because of planning appeals and a threatened judicial review.
The judicial review has been sought by a Belgian-born musician, Mr Robert Guillemot. A resident of one of the seven tower blocks in Ballymun, he believes the plan to demolish the 1960s high-rise housing estate is wholly misconceived.
Mr Guillemot is challenging decisions by Dublin Corporation to grant planning permission for five of the initial replacement housing schemes planned by Ballymun Regeneration Ltd, the corporation subsidiary set up to plan the area's redevelopment.
Earlier, Friends of the Irish Environment (FIE) appealed to An Bord Pleanála against three other housing schemes, also approved by the corporation, arguing that there should have been an environmental impact assessment of the entire project.

