Llys Rhosyr

The visible remains form the outlines of an enclosed complex whose original footprint may have stretched roughly 450 by 300 feet (about 137 by 91 metres). The enclosure was defined by a substantial surrounding wall; only parts of that perimeter have been exposed, and roughly one quarter of the wall circuit has been revealed through excavation. The complex contained a mix of stone foundations and what would once have been timber-built elements, reflecting construction in both durable and perishable materials.

Within the enclosure the foundations and low surviving wall courses of three large rectangular buildings have been uncovered. One of these structures is interpreted as the main hall, another as a chamber for more private accommodation, and the third as storage barns for crops or goods. These buildings were erected in the medieval period, before the late 1200s, using stone for long-lasting bases and timber for superstructure and internal fittings. The preserved remains are the lower masonry and foundation outlines rather than complete walls.

Archaeological work recovered domestic and personal items from the site, including pottery sherds and pieces of silver tableware, which point to use by people of high social standing. Fishing weights made of lead were also found, indicating nearby exploitation of marine or freshwater resources. After the storm in 1332 much of the complex became covered by sand, a change that altered the site’s use and preservation; the in situ foundations and wall stubs now lie within that buried landscape.

Local memory has preserved the site’s identity through names such as Cae Llys and “the field of the court,” and early modern accounts recorded sections of wall revealed by shifting sand. Today visitors see the plan of the enclosure and the exposed lower walls and foundations, with the scale and arrangement of the hall, chamber and barns still readable in the ground.