Romans, Gold & Turbines
What Bryn Cadwgan Energy Park means for our historic landscape
When we think of the Bryn Cadwgan Energy Park, we are led to picture turbines, pylons, and access roads. However, hidden within the developer’s own Environmental Statement is something more concerning: the scheme would cut through one of Wales’s most significant historic landscapes — Dolaucothi, the only known Roman gold-mining site in Britain.
A Landscape of National Importance
Dolaucothi is not just another valley. It is a nationally recognised Registered Historic Landscape of Outstanding Interest (HLW (D) 8) because it preserves the remains of Roman mining — including aqueducts, leats, and the Pumsaint Roman Fort — within a working estate and parkland. It is also home to a Grade II registered historic park and garden, listed farm buildings, and archaeological features that span millennia.
Cadw guidance is clear: “the setting of a historic asset is often integral to its significance”. A fort encircled by turbines or an aqueduct scarred by construction no longer tells its story in the same way. These places are fragile not because they are weak, but because their meaning is connected to the landscapes around them.
What the Developer Admits
The developer’s own documents1 confirm the risks:
The proposed access route passes directly through the Pumsaint Roman Fort Scheduled Monument and its associated vicus (settlement). This results in a Moderate (significant) effect — one so serious that it would require separate Scheduled Monument Consent (SMC).
The Dolaucothi Registered Historic Landscape would also experience a moderate (significant) impact, while the Grade II-listed Dolaucothi Lodge would be affected.
Even after mitigation, the ES records many heritage assets where significant setting effects remain, with some labelled as impossible to mitigate.
In short: the harm is acknowledged and baked into the plan.
However, there is the potential for cumulative harm here because this is the first of 4 “Energy Parks” planned in the immediate area…… and more beyond!
The Planning Test
Welsh planning rules do not take this lightly. Planning Policy Wales states that damage to scheduled monuments or their settings is only allowed in “exceptional circumstances.” The Well-being of Future Generations Act also requires public bodies to protect cultural well-being for future generations.
The question, then, is not whether harm will occur — the developer admits it will. The question is whether it can possibly be justified in light of national policies designed to protect the historic environment.
What’s at Stake
A complex historic estate and village landscape, centred on Dolaucothi and Pumpsaint, where 18th–19th century parkland overlays nationally significant archaeological2 and architectural features.
This is not just about underground archaeology. It is about living connections to the land. Visitors still follow the Roman aqueducts across the hillsides. Locals pass the fort beside the A482 every day. These are tangible links to history that make the area special.
Once turbines, pylons, and access tracks industrialise this valley, those links will be broken. And once broken, they cannot be restored.
A Call to Protect
We cannot replace the only Roman gold mine in Britain. We cannot rebuild a fort or re-carve aqueducts into the hillside. What we can do is insist that decision-makers follow their own policies, and that nationally important heritage is treated with the respect it deserves.
Bryn Cadwgan is not just about energy. It is about whether we value our history and landscape enough to defend them.
A spokesperson for National Trust Cymru said:
“We are aware that an access route to the proposed Bryn Cadwgan Energy Park has been identified via land we care for at Pumsaint. To date we have only given permission for survey work along the proposed route. We have not agreed to any element of the scheme in principle.
“We take a case-by-case approach to all proposed renewable schemes that directly impact the land we care for, to ensure they are being designed and located appropriately, using the right technology, on the right scale in the right location. We will continue to review the proposals and engage in the consultation process to further understand the details and impacts of the scheme on the places we care for.”
ENDS
This is a fantastic , well researched post Annie.
Well done!
I understand that although the National Trust are indicating that they haven't signed on any dotted lines yet, the fact that Galileo have had the confidence to show their site access route running across the Dolaucothi Estate as part of their proposals means they must have reached some sort of 'understanding'.
And as for CADW, well they are as about as much use as a chocolate fireguard.
They haven't done anything to protect important features at other wind farm sites, so I have no expectation of them doing so here.
Of course, everyone at PEDW will demonstrate that they are following the correct 'robust' planning policies and guidance before finally giving the nod of approval whilst justifying their decision by using their favourite statement 'wholly exceptional circumstances'.
Hi Annie,
Has anyone been able to contact the national trust in regards their involvement in this? I have certainly witnessed an almost deliberate decline and running down of the site in the last 3 years.
I would be interested in how their involvement marries up with their philosophy of preserving our historic sites.