1880 – The property was built on College Road to serve as the Castleisland Fever Hospital, replacing a temporary famine-era facility.
1894 – The hospital closed and fell into disuse after a local fever epidemic subsided. Over subsequent decades, the building saw alternative community uses, including rehearsals for the Castleisland Dramatic Club.
1931 – The building first opened for students as the relocated Castleisland Boys’ National School, serving in that capacity for 30 years.
1939 – Separately, St. Patrick’s Secondary School (founded by Seán Prendiville) began operations at the Carnegie Library in Castleisland.
1962 – After a new boys’ national school (Scoil Naomh Chárthaigh) opened nearby on College Road, St. Patrick’s Secondary School relocated into the older former hospital building on College Road, which remains its current home.
1986 – St Patrick’s Secondary School came under the ownership and management or Mr. Dan O’Connor. He continued the upgrading and advancement of the school under his guidance for 26 Years.
2012 – Mr Denis O’Donovan became principal, owner and manager and continued in this role until 2024. (He remains manager of the school).
2024 – Tim Long was appointed principal of St Patrick’s Secondary School, as a past pupil of the school he proudly continues the long and outstanding tradition of education in St Patrick’s Secondary School.
