There has been a school around the current site since 1880, when Rowland Morgan endowed £20 for its creation. In the early twentieth-century, Bassaleg Controlled Voluntary School was built in its place to serve the families of the workers of
Lord Tredegar's estate. During the
Second World War, five teachers and around 250 past students were serving in the forces, while forty older male students formed the "School Harvest Camp"; sleeping in the recently built gymnasium and farming the surrounding land for six weeks. The Secondary Modern's main building was erected adjacent to Griffin Lane, thus known as Griffin Building.Because of expanding residential development in the area, consultations took place in 2021 to 2022 to increase capacity to over 2,000 pupils by 2023. Plans for building expansion were approved by
Newport City Council in February 2022 with work beginning in March 2022, following a £30,000,000 investment. The contractors for the work were
Willmott Dixon. The main development, a new building called Adeilad Balch (English:
Pride Building), was opened in October 2024. In 2023, during the building works, the school renamed its buildings in Welsh; each reflecting one of the school's values. The new names include Caredig, Parchus, Dewr, Balch, Uniondeb, and Gwydn, meaning Kindness, Respect, Bravery, Pride, Integrity, and Resilience respectively. == Architecture ==