Builth Castle

Builth Castle is a medieval fortification with a prominent earthwork mound surrounded by defensive ditches and banks. The site shows evidence of both earlier timber structures and later stone construction.

A timber fort was built here around 1100, but in the 1270s construction of a stone castle began on the site. This new structure became part of a wider fortification strategy to control the region.

The ruins show Norman influence on Welsh military architecture through both earthwork and stone fortification design. You can see how these two building styles came together at this location over time.

The site is freely accessible and the medieval outline is clear to see from ground level. Sturdy footwear is advisable as the mound is steep and can become slippery after rain.

Much of the stone was quarried in the 16th century and reused to build a nearby house. This practice was common when medieval fortifications no longer served a military purpose.

Location: Builth Wells

GPS coordinates: 52.14920,-3.39855

Latest update: December 8, 2025 21:04