The court has ordered restoration and building work halted
The acting Heritage Minister Heather Humphreys has refused to rule out an appeal against a High Court judgment on Dublin's Moore Street.
Ms Humphreys says she is carefully studying the findings, which ordered a halt to restoration and building work, pending a review of buildings there as a national monument.
Numbers 14 to 17 Moore Street have already been protected - but relatives of those who fought in the 1916 Rising want additional buildings along a row of houses to be preserved.
In his 399 page judgement, Mr Justice Barrett said the court concluded "that there are other national monuments" in the area beyond those contained in a preservation order of 2007.
It also found that a newly-discovered cellar to the rear of number 14 Moore Street is a national monument, protected and preserved under the National Monuments Act, 1930.
And that the extent of the national monument located at numbers 14 to 17 Moore Street includes any and all basements and/or cellars, including the basements and/or cellars located on Moore Street and Moore Lane.
The matter will return to the High Court in April, after the acting minister has a chance to review the judgement.
But Ms Humphreys told Newstalk Breakfast she has made no decision yet.