Castell Henllys, Pembrokeshire

Castell Henllys is a Scheduled Ancient Monument and one of many prehistoric forts in the Pembrokeshire Coast National Park dating to approximately 600BC. The education centre for children at Castell Henllys provides a transition between the ancient and modern with an unobtrusive, simple 'green building', which aims to convey a handmade feel and to help children's understanding of the Iron Age site. To minimise the building's impact, it is set into an existing embankment with gently pitched grass roofs, random rubble rear walls and a lightweight timber structure.