Case will be closely watched by owners of the up to 100,000 apartments built during the Celtic Tiger era which were left with defects

Campaign group says as many as 100,000 homeowners live homes built between 1991 and 2013 that could have a range of fire safety, structural safety or water ingress defects

Report finds defects were caused by 'defective design, defective or faulty workmanship, defective materials, or any combination of these at the time of construction'

The potential €2.8bn needed to fix defects in up to 110,000 apartments could be made up of exchequer funding and a levy on the construction industry, said the Tánaiste