A previously unknown and well-preserved ancient Roman villa complex has been discovered in Margam, Wales, using high-resolution magnetometry and ground radar.
The ArcheoMargam team behind the discovery included representatives from Swansea University, Neath Port Talbot Council, and Margam Abbey Church, who successfully mapped the Roman villa, which was discovered three feet below a local park, and its surrounding layout in 3D.
The precise location remains a secret, and no excavation is yet planned, but what has been revealed so far offers unique clues about the lives of the Roman-era residents who once lived there.
A Newly Discovered Roman Site
“This is an amazing discovery,” said Alex Langlands, associate professor and co-director of Swansea University’s Centre for Heritage Research and Training. “We always thought that we’d find something dating to the Romano-British period, but we never dreamed it would be so clearly articulated and with so much potential in terms of what it can tell us about the elusive first millennium [C.E.] here in South Wales.”
The villa is unusual in that it sits within a 141-foot-by-180-foot defensible enclosure. Archaeologists interpret this to mean that the structure was either built within an earlier Iron Age settlement or built late in the Roman period, when it required defense against raiders assaulting the declining empire.
Radar also uncovered another large building to the southeast of the villa, about which the archaeologists suggest two possible uses. It may once have been an agricultural storage facility or a post-Roman meeting hall. Additionally, there are hints that a bathhouse may once have also been located at the site. Since the park area was not used for farmland or developed in later periods, the team believes that anything below the surface is likely to be extremely well preserved. While the area has many famous historical monuments, they skip the Roman period and cover the Bronze Age, Iron Age, medieval period, and post-medieval period.
An Unexpected Discovery
The researchers say that no one expected the geophysical surveys conducted by Terradat to reveal the large-scale Roman villa complex.
“The surveys went exceptionally well, and the high-resolution magnetometry and GPR data are remarkably clear, identifying and mapping in 3D the villa structure, surrounding ditches, and wider layout of the site,” said Terradat Technical Director Christian Bird.
“This is an amazing discovery. We always thought that we’d find something dating to the Romano-British period, but we never dreamed it would be so clearly articulated and with so much potential in terms of what it can tell us about the elusive first millennium AD here in South Wales,” added Dr. Alex Langlands. “It is too early to speculate about the date range of the building, its architectural features, who constructed it, and how it fell out of use.”
Exploring Roman Margam
As excavation has yet to commence, the site remains mysterious. Researchers are hopeful that the expected level of preservation will reveal much about Roman Wales. Additionally, the find suggests that Margram was once an important power center in Wales, likely a gateway to the more fertile land to the east.
“From the geophysical survey alone we can start to build hypotheses about how important this site could be and what it can tell us about Margam’s long-term role in the social, cultural, and economic developments across the first millennium in Wales,” Langlands explained.
Community members, pupils, students, volunteers, and SMEs from across the region came together to work on previous excavations through the ArcheoMargam project, aimed at better understanding the area’s pre-industrial history. As ArcheoMargam continues, the stakeholders look forward to the next chapter in uncovering their local history.
“By valuing and protecting this heritage, we strengthen local pride, attract visitors, and create opportunities for learning and growth,” said Cllr Cen Phillips, Neath Port Talbot Council Cabinet Member for Nature, Tourism and Wellbeing.
“I am extremely excited to find out more from this untold chapter in Margam Park’s long story.”
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.