A High Court action by the 1916 Relatives Association aimed at preventing the demolition of certain buildings on Moore Street has been adjourned until Friday.
The action against the Minister for Arts, Heritage and the Gaeltacht was taken by Colm Moore, a nominee of the association and was due to begin today.
However, the court was told the case could not proceed for a number of reasons.
The court was told the case concerns the national monument at numbers 14-17 Moore St and related to determining what is a national monument.
Lawyers for the minister have said there is urgency to the case as this is an amenity for the people of Ireland.
Senior Counsel Seamus Woulfe said if the site was to be available to the people of Ireland as part of the Easter Rising commemorations then the hearing would have to happen in a matter of days.
The case centres on a dispute about the historical significance of some of the buildings on either side of the national monument.
Numbers 14-17 are designated as national monuments.
They are believed to be the last buildings where the leaders of the Rising gathered.
Mr Moore argues that the designation should extend to the lands and buildings at numbers 13, 18 and 19.
He also claims lands and buildings at numbers 6, 7, 10, 11, 12, 13, 18 and 19 Moore Lane are protected by law.
The court also agreed to join the owners of some of the Moore Street properties to the proceedings.
Chartered Land had applied to be joined to the proceedings.
The company argued they have planning permission to develop numbers 13 and 19 Moore Street and any decision by the court in relation to the site would affect their planning permission.
The State agreed to continue an undertaking not to demolish any buildings on the site.
But said it may have to apply for injunctions because of ongoing protests at the site.
The case is now due to begin on Friday morning.