Anglesey's old smelter site: what's really planned?
Stena Line's Prosperity Parc has outline permission for a data centre-led campus on the old Anglesey Aluminium site at Holyhead, with a large battery store. The detailed plans are still to come.
- Ref
- OP/2025/2
- Decides
- Isle of Anglesey County Council
- Size
- Not published
- Next
- Sign-off and later phases
To Isle of Anglesey County Council: Every detailed application for Prosperity Parc must come to councillors in public, with published power and water figures.
Why local people are worried
It's approved. Here's what you can still do
The headline decision has been made, but conditions, legal agreements and detailed designs still need approval. Each is a chance to be heard.
- Quote the reference: OP/2025/2
- Good planning grounds include: impact on the Green Belt or countryside, energy use and carbon, water supply, noise, traffic, wildlife and heritage. Developers' promises are not guarantees: ask for them to be made binding.
Comment on later applications via Isle of Anglesey County Council's planning portal; ask councillors to bring them to Planning and Orders Committee.
We link to everyone working on this. Please support them too.
- Stop the construction of an AI datacenter in Anglesey (15 signatures)
Every fact on this page is sourced. See the full record on Data Centre Watch. Last checked 3 October 2026.