Ysgol Plas Brondyffryn is a local authority special school maintained by Denbighshire County Council. The school provides day and residential placements for pupils aged 3 to 19 with autism. Pupils are drawn from the whole of Denbighshire as well as from neighbouring local authorities across the North Wales region. The school is based on three sites in the town of Denbigh. There are 67 pupils of secondary school age at the main site in Park Street, 37 pupils at the primary setting in Rhyl Road and 19 secondary-aged pupils with more complex needs at Ty’r Ysgol in Nantglyn Road. The residential provision is situated alongside Ty’r Ysgol. All pupils have statements of special educational needs. Nearly all pupils have English as their home language. Around 30% of pupils are eligible for free school meals. There are currently the equivalent of 16 full-time teachers, including senior leaders, and 50 classroom support staff. The headteacher, who has been in post since 2010, is due to retire at the end of August 2016. At the time of the inspection, the governing body had appointed one of the assistant headteachers to the post of acting headteacher.