placenamesKnocklyon
Cnoc Lín
A medieval tower incorporated into a country house survives alongside schools and a parish church built for Knocklyon’s expanding population in the 1970s.
The name
These Irish name elements are associated with this record in the Logainm glossary.
An element’s translation is a clue, rather than a complete explanation of the name. Its form and meaning depend on local history and the full Irish name.
Recorded forms
- Cnoc Lín · Irish · main form · validated name
- Knocklyon · English · main form
Place & story
A castle inside a later house
Knocklyon Castle incorporates a three-storey tower house dated to about 1435, with two corner towers set diagonally. It was rebuilt around 1620 and subsequently absorbed into a country house whose main nineteenth-century work dates from about 1840. A southern wing belongs to an earlier phase around 1780. Paired sash windows, an elaborate entrance and a hipped slate roof reflect its adaptation for domestic comfort. Its surviving fabric therefore records several centuries of modification, rather than a single unchanged medieval castle. [2]
Schools for an expanding district
St Colmcille’s National Schools began with a seven-acre site on Idrone Avenue, bought in the mid-1970s. Architect John Carroll designed the first sixteen-classroom building, completed in July 1976 and admitting pupils that September. Taoiseach Liam Cosgrave, who lived on Scholarstown Road, formally opened it on 31 March 1977, with Archbishop Dermot Ryan blessing the building. Rapid population growth required a second building in 1982: the original became the junior school and the new premises housed the senior pupils. [3]
Saint Colmcille’s parish church
The parish of Knocklyon was established in 1974 under the patronage of Saint Colmcille. A temporary church followed, with its first Mass celebrated in August 1975. During his Irish visit in 1979, Pope John Paul II blessed the foundation stone for a permanent church. The new Saint Colmcille’s opened in April 1980. These dates place the parish’s physical development alongside that of the schools, as new institutions took shape to serve the growing residential district. [4]
Geographic information
Sources & further reading
- Logainm.ie — Knocklyon. Place names and geographic record, licensed under CC BY 4.0.
- Knocklyon Castle, record 11215018 · National Inventory of Architectural Heritage
- History of St Colmcille’s National Schools, Knocklyon · St Colmcille’s Senior National School
- Knocklyon parish history · Archdiocese of Dublin
Name record retrieved 2026-10-25 · Source record modified 2021-02-17. How this page was prepared.