21 year old John Joyce with an address of 1 Lentisk Lawn, The Donahies, Donaghmede, Dublin 13 entered the guilty plea to the charge of aggravated burglary at Clonmel Circuit Court.
A total of 7 men have been charged in relation to the incident which happened in November 2013 at the home of Mark and Emma Corcoran, and their three young daughters, in Killenaule.
The remaining two men are due to stand trial in July.
Mr Joyce was remanded in custody to the next session of Clonmel Circuit Court for sentencing later this year.
