Cefais wybod ym mis Hydref 2012 fod Estyn, ar ôl cynnal arolygiad o dan Adran 28 o Ddeddf Addysg 2005, o’r farn bod angen mesurau arbennig ar Ysgol Uwchradd Llanrhymni.
I was notified in October 2012 that, following inspection under Section 28 of the Education Act 2005, Estyn judged that Llanrumney High School in Cardiff requires special measures.