July 1994: Wicklow County Council began High Court proceedings to stop Roadstone Dublin Ltd from removing sand and gravel from the site.
Roadstone had already removed 67,000 tonnes from the site, based on an opinion that it was an existing quarry and no planning permission was required.
Blessington Heritage Trust joined in the action against the cement company.
February 1996: Councillor Tommy Cullen, then chairman of Wicklow County Council, brought High Court proceedings against the council after being prevented from seeing files relating to Glen Ding. Mr Justice McCracken granted him access.
March 1996: Following a High Court hearing, Roadstone agreed to cease quarrying at Glen Ding until full planning permission was granted.
September 1996: Wicklow County Council adopted the Blessington Development Plan, rezoning Glen Ding Woods from amenity use to quarrying. The motion was proposed by Councillor Jim Ruttle and seconded by Councillor Mildred Fox TD.
November 1996: Roadstone applied to Wicklow County Council to extend its proposed development of Glen Ding and the surrounding area.
December 1997: Planning permission was granted to Roadstone to quarry the site.
January 1998: Ms Justice McGuinness ruled in favour of the Blessington Heritage Trust and quashed the Blessington Development Plan. The judgment did not stop the council from adopting a plan, but would give it a chance to consider rezoning matters, she said.