A Cardiff data centre call-in has been reported by two Members of the Senedd following months of controversy over plans to redevelop the Cardiff East Park and Ride site. On 12 November 2026, regional reporting attributed the announcement to Nick Carter MS and Zaynub Akbar MS, who said Welsh Ministers had intervened on 11 November. The ministerial decision letter has not yet been independently confirmed in an official publication.
The application by Curtis Hall Ltd, reference 26/00109/HYB, proposes a major data centre with associated infrastructure on land off Eastern Avenue at Old St Mellons. Cardiff Council had listed the scheme for a special Planning Committee meeting on Thursday 12 November, with officers recommending approval. A previous Welsh Government holding direction already prevented the council from issuing a grant of permission while the request to call in the application was considered.
The Cardiff data centre call-in matters beyond this proposal because the application combines digital infrastructure, on-site energy generation, potential transport changes and contentious environmental evidence. It also tests the boundary between a council’s assessment and a ministerial decision in Wales. Whatever happens to the determination procedure, neither the reported intervention nor the earlier officer recommendation constitutes approval or refusal of the development.
Cardiff data centre call-in reported by Senedd members
The Pembrokeshire Herald reported on 12 November that Nick Carter MS and Zaynub Akbar MS had announced a Welsh Government call-in on the previous day. According to their reported statements, the change would place the final planning decision with Welsh Ministers instead of Cardiff Council. Mr Carter described it as a significant step for residents who had challenged the location and environmental effects of the proposal.
Ms Akbar stressed that the intervention should not be confused with rejection of the scheme. Her reported words were: The data centre has not been rejected.
That distinction is essential. A call-in, if formally directed, changes who determines an application, not its merits. An inspector may examine evidence and advise ministers, but any subsequent decision on permission remains a separate step.
The latest Welsh Government public register, updated on 9 November, records the Cardiff East Park and Ride case under reference 1979 as a call-in request still under initial processing. That document predates the 11 November announcement and cannot confirm or disprove an intervention made later. The formal direction and any consequent change to the advertised council meeting remain material documents to establish before the new procedural status can be reported definitively.
What the Cardiff East application proposes
Cardiff Council’s published committee agenda identifies a hybrid application for demolition and construction of a data centre, associated buildings, access arrangements, landscaping and a bridge across the Rhymney River. The scheme concerns the existing east Cardiff park-and-ride site, which has been used for parking linked to University Hospital of Wales services. Planning reference 26/00109/HYB allows readers to distinguish it from other data centre proposals in South Wales.
The applicant has promoted the Cardiff data centre as part of the region’s wider digital infrastructure ambitions. Earlier reporting also described a proposed temporary gas-fired energy centre while a substantial grid connection is awaited. Published accounts refer to generating capacity figures close to 50 megawatts, but different application documents have used different parameters. The precise scheme and any relevant consenting thresholds must be assessed against the final application documents, not a shorthand description in a headline.
In the run-up to the committee date, planning officers recommended approval, according to the agenda and reports described by established Welsh news organisations. An officer recommendation is advice to councillors, not an issued permission. The pre-existing holding direction also mattered: it prevented an approval being issued while ministers considered the call-in request, but did not turn the proposal into a refusal or establish that it would inevitably be called in.
Environmental questions remain disputed
Campaigners have raised concerns about air quality, noise, flood risk, loss of habitat and continued provision of parking for people travelling to hospital. In reporting published on 11 November, the Save Cardiff East group argued that the consultation material had not presented the power and environmental information clearly enough. These are allegations made by objectors, not findings that the council or developer has breached environmental law.
The same reporting described concerns said to have been raised by Natural Resources Wales over contamination, controlled waters and firewater management. They are material subjects for the decision-makers, but their significance cannot be determined simply by counting objections or quoting an isolated technical conclusion. Readers need to distinguish the applicant’s assessments, consultees’ responses, officers’ recommendations and the eventual decision-maker’s findings.
Cardiff Council has rejected the suggestion that it rushed the application to committee. In earlier remarks reported by Nation.Cymru, the authority said it had offered an additional consultation period and would not put the scheme before members until officers were satisfied that relevant planning considerations had been addressed. That explanation deserves to be read alongside the community complaints rather than ignored or treated as an independent determination that all issues were resolved.
The Cardiff data centre call-in, if formally confirmed, is therefore important not simply because of local opposition but because it could place an unusually complex collection of development, power and environmental questions into a different decision-making process. A ministerial procedure would not remove the need to assess those matters impartially, and an inspector’s report would not be the final permission.
How a Welsh planning call-in works
The Welsh Government’s published call-in guidance explains that ministers may take over planning applications raising issues of more than local importance. Section 77 of the Town and Country Planning Act 1990 is identified as the principal planning call-in power. A holding direction is a separate interim mechanism, restricting a local planning authority’s ability to grant permission while ministers consider a request.
Where ministers make a call-in direction, an independent planning inspector examines the proposal by an appropriate procedure, which could involve written representations, a hearing or an inquiry. The inspector then makes recommendations, and ministers determine the application. The procedure itself is not a presumption of consent or refusal. Importantly, Wales has its own planning policies and procedures, which should not be replaced by English national-policy assumptions when analysing a case in Cardiff.
Planning Geek’s Wales planning guidance explains the broader devolved planning context. For this site, applicants, affected residents and advisers should follow the official direction, any timetable issued by Planning and Environment Decisions Wales, and the full material ultimately considered by whoever makes the decision. Campaign statements can explain the debate, but cannot substitute for a signed ministerial direction.
What happens next for the proposed data centre
For the Cardiff data centre, the immediate question is whether and when the Welsh Government publishes the formal decision on the call-in request and the scope of any direction. That will establish the correct decision-maker and whether Cardiff Council’s advertised committee business changes. Public material available before the reported announcement listed a special committee meeting for 12 November, but its future handling cannot safely be inferred from an earlier agenda alone.
The Cardiff data centre call-in story is a reminder that a planning application can move through several significant procedural stages without a planning permission being issued. A request for ministerial intervention, a temporary holding direction, an officer recommendation and a formal call-in are distinct events. None by itself settles whether this major infrastructure proposal is acceptable, or whether it can be implemented.
As of the early hours of 12 November, the new development is a reported announcement attributed to two Senedd members. The official record last updated on 9 November still shows a pending call-in request. The definitive next update should be based on the ministerial direction or fresh official case record, not on an assumption that the planning merits have already been decided.
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