Has Treffos School been inspected?

Estyn has inspected Treffos School, and its most recent report is set out in the inspection section on this page, with the inspection date and a link to the full report on the Estyn website.

Is Treffos School a faith school?

No. Treffos School has no designated religious character.

Does Treffos School publish exam results?

Wales does not publish school-level exam results under an open licence, so this page shows the characteristics the Welsh Government does release, such as the share of pupils eligible for free school meals, rather than exam data. Its inspection report is on the Estyn website.

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Treffos School

Treffos School

Llansadwrn, Nr Menai Bridge, Anglesey, LL59 5SL

Phase: Independent
Gender: Not applicable
Constituency: Ynys Môn
Setting: Smaller rural: Further from a major town or city
URN: 401967
Local authority: Isle of Anglesey
Telephone: 01248712322

About this school

Treffos School is an independent school in Isle of Anglesey.

Estyn has inspected it, and the inspection section below links to the full report. Seeing a school for yourself shows what no page can, so arrange a visit before you apply.

Estyn inspection

Wales: Estyn

Inspected 2 December 2025 · Monitoring visit, Independent school

Estyn now reports in narrative form. Instead of an overall grade it describes a school's work and, where it is needed, sets a follow-up category. OfferDay shows the inspection date and links to the full report rather than reproducing Estyn's findings.

Read the full inspection report on Estyn's website

Location

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Common questions

What kind of school is Treffos School?: Treffos School is an independent school in Isle of Anglesey.
Has Treffos School been inspected?: Estyn has inspected Treffos School, and its most recent report is set out in the inspection section on this page, with the inspection date and a link to the full report on the Estyn website.
Is Treffos School a faith school?: No. Treffos School has no designated religious character.
Does Treffos School publish exam results?: Wales does not publish school-level exam results under an open licence, so this page shows the characteristics the Welsh Government does release, such as the share of pupils eligible for free school meals, rather than exam data. Its inspection report is on the Estyn website.

School details come from the Department for Education's Get Information About Schools register and the Welsh Government's address list of schools. Inspection information comes from Estyn, and pupil characteristics from the Welsh Government's school census. OfferDay links to each Estyn report rather than reproducing it. This page was last updated on 2 December 2025.