Welsh farmstead is rare medieval hall house, experts confirm

New dating technique used to prove Llwyn Celyn farmhouse is medieval marvel

A Welsh farmhouse that was once in such poor condition that rainwater ran through its rooms is in fact an exceptionally rare 600-year-old medieval hall house, it has been confirmed, after conservation experts used a groundbreaking new dating technique originally developed by climate change scientists.

Llwyn Celyn, which lies in the Black Mountains on the border of England and Wales, was completed in 1420, an analysis of its timbers found, making it one of only a tiny number of domestic buildings to survive from one of the most destructive periods in Welsh history, immediately following the failed revolt of the Welsh prince Owain GlyndAr.