On the 12th December 2008 Rineen N.S celebrated in style when the official opening of the school extension took place. The new extension and refurbishment of the old school ensures that the pupils will now have a spacious, bright, warm and modern school to attend. Two new large ensuite classrooms, a P.E. hall and Storeroom, a Resource Teaching room, Computer room and a Staff-room now make up the new modern Rineen N.S.

Bishop Willie Walsh officially opened the school by blessing it and celebrating mass with Canon Mullin and Fr. Seán Murphy P.P. The pupils and parents were actively involved in the choir, readings, and prayers of the faithful. Music was performed by Mrs Mary Duffy.Afterwards refreshments were provided by the Sherwood Inn and past pupils met and reminisced as they looked at old roll books, school books and photos.