Caerleon Endowed School, (also known as The Endowed School, Caerleon, Caerleon Charity School, Williams Charity School and Caerleon Junior School) is a junior school that was built in 1724 from a bequest from Charles Williams. The school became part of the state education system in 1948 under the 1944 Education Act. The school was designated a Grade II* listed building in 1951. The Pevsner Guide describes the school as "educational bounty on an exceptional scale for the 18th century". The layout (a half H) become a model for later schools in Wales.