Holy Trinity Sen National School
Donaghmede, Dublin
Key facts
- Mixed
- Pupils enrolled
- 397 larger than the median Irish primary school (123 pupils)
- Girls and boys
- 199 girls, 198 boys
- Ethos
- Catholic
- Teaching through Irish
- No subjects through Irish
- Roll number
- 19406J the Department of Education reference for this school
School details
Location
About
Holy Trinity Senior National School is a co‑educational Catholic primary school situated on Grange Road in Donagh mede, Dublin 13. It operates under the patronage of the Catholic Archbishop of Dublin and provides education for children from 3rd to 6th class. The school’s vision, *Scoile na Tríonóide Naofa*, stresses a happy, safe, caring and respectful learning environment where every child’s academic, spiritual, physical, social and emotional needs are nurtured. A Whole‑School Evaluation by the Department of Education and Science highlighted the school’s high standards of classroom teaching and its strong commitment to extra‑curricular activities. The curriculum is complemented by a broad range of facilities and programmes designed to promote holistic development. The school maintains a well‑tended garden, a breakfast club and a dedicated ICT suite that supports digital literacy. Participation in the Active Flag initiative provides structured physical‑education and activity sessions, while partnerships with local sports clubs and the Green Schools programme encourage environmental awareness and healthy lifestyles. Resources such as a virtual tour, a curated school booklist and regular newsletters keep families engaged and informed. A multicultural community lies at the heart of Holy Trinity, with an ethos of respect for individual differences and encouragement for each pupil to reach their full potential. The school’s extra‑curricular programme includes clubs, competitions and events such as International Week, Seachtain na Gaeilge, art and well‑being clubs, and a range of sports teams, fostering confidence, teamwork and a sense of belonging.
Applying to Holy Trinity Sen National School
For a September 2027 place, a school's formal admissions process cannot begin before 1 October 2026. The school sets its own opening and closing dates in its annual admission notice.
National term dates 2026/27
Irish schools follow a standardised school year, so these nationwide primary school dates apply broadly to Holy Trinity Sen National School. Individual schools set their own discretionary closure days, confirm exact dates with the school.
- October Mid-Term Break: Mon 26 Oct – Fri 30 Oct 2026
- Christmas Holidays: Wed 23 Dec 2026 – Tue 5 Jan 2027
- February Mid-Term Break: Thu 18 Feb – Fri 19 Feb 2027 (post-primary schools: Mon 15 Feb – Fri 19 Feb 2027)
- Easter Holidays: Mon 22 Mar – Sun 4 Apr 2027
Primary schools close for the last two days of the February mid-term week and may use discretionary days to take the full week, so their break can be shorter than post-primary schools'.
Frequently asked questions about Holy Trinity Sen National School
How many pupils attend Holy Trinity Sen National School?
Holy Trinity Sen National School has 397 pupils enrolled, 199 girls and 198 boys. That makes it larger than the median Irish primary school, which has 123 pupils.
Is Holy Trinity Sen National School a DEIS school?
No. Holy Trinity Sen National School is not part of DEIS, the Department of Education programme of additional supports for schools serving communities at risk of educational disadvantage. Not holding DEIS status says nothing about how good a school is, only about the profile of the community it serves.
What is the ethos of Holy Trinity Sen National School?
Holy Trinity Sen National School has a Catholic ethos. It is a mixed primary school.