Links and references so you can go directly to the source material rather than take our word for it.
Go directly to the application record on Cardiff Council's planning system: view key dates, documents, consultee responses and comments already submitted for this specific application.
Open application 26/00109/HYBSearch for application reference 26/00109/HYB (Cardiff East Park and Ride data centre), read the full submitted documents, and view any decisions made.
View on cardiff.gov.ukSearch application 26/00109/HYB directly, download supporting documents (design and access statements, environmental reports, site drawings), and submit a formal comment.
Go to planning portalIllustrative site and design drawings for the proposed development are included within the application documents on the planning portal above (originally shared locally via a QR code on the printed community notice).
View drawings on planning portalPBS Terra investigation into the impact of AI data centre construction on nearby communities.
Watch on YouTubeThe full-length "View From Above" investigation from Business Insider into US data centre expansion, including its impact on local water supplies and communities near major Amazon, Microsoft and Google sites. Set to start at 1:34, the point in the video flagged as most relevant here — use the player controls to watch from the beginning if you'd prefer full context.
Source: Business Insider (YouTube). We haven't independently verified the specific claims made at this timestamp — watch the segment yourself before citing it.
Watch on YouTubeLocally shared illustrations comparing the current Park and Ride site to the proposed development suggest a footprint of roughly 48 football pitches. These are generated illustrations for reference only — the applicant's official site plans (available via the planning portal) are the accurate source.
Formal objections
Formal letters of objection to planning application 26/00109/HYB, submitted by Members of the Senedd for Caerdydd Ffynnon Taf.
Dated 26 May 2026. Formal objection to application 26/00109/HYB, citing loss of vital transport infrastructure and public access to healthcare, and environmental/ecological impact.
Download PDFDated 17 July 2026. Formal objection to application 26/00109/HYB, covering traffic and hospital access impacts, 24-hour noise, loss of trees and habitat, and the site's suitability for data centre use.
Download PDFDated 28 July 2026. Formal objection to application 26/00109/HYB, highlighting that 44 of 53 pre-application consultation responses opposed the loss of the Park and Ride, that Cardiff Bus estimates 300–400 cars use the site daily, its role in hospital access, and a discrepancy over whether a replacement site has actually been identified.
Download PDFOther objections
A further objection letter submitted on the planning file, raising healthcare access and NHS sustainability concerns.
Formal objection to application 26/00109/HYB. Written on Green ED / NHS Wales letterhead by a Consultant in Emergency Medicine at the University Hospital of Wales, explicitly submitted in a personal capacity as a resident — not as an official position of Cardiff and Vale University Health Board. Raises concerns about loss of sustainable transport to Wales' busiest hospital, impact on patients missing appointments (particularly the most vulnerable), and conflict with NHS Wales net-zero and Green ED sustainability commitments. The author's name is redacted in the copy published here.
Download PDFMedia downloads
Not everyone sees this website. The most reliable way to reach a neighbour is still a knock on the door or a leaflet through the letterbox. Print a few copies and share them with the people on your own street — everyone should know what's being proposed, whatever their view on it.
Llanrumney residents — join the WhatsApp groupThere's a WhatsApp group for residents of Llanrumney to stay in the loop. It's used to share news and information on the data centre proposal as and when it happens — planning updates, meeting dates, deadlines for comments, and anything else residents need to know. Free to join, and it's the fastest way to hear about developments between website updates.
Join the WhatsApp groupThe full two-sided community notice as a print-ready A4 PDF, covering what's being proposed, the key questions residents are asking, and how to have your say. Print it, fold it, hand it out or post it through doors — this is community engagement in the streets people actually live on.
Download A4 leaflet (PDF)Ready-made 4:5 carousel graphics covering the proposal and how to have your say. Download, upload both images to Instagram as a single post, and share to your own story or feed to help reach people who won't see a printed leaflet.
Download Instagram pack (ZIP)Ready-made 1:1 square graphics covering the proposal and how to have your say. Download, post to your own Facebook page or share in local community groups.
Download Facebook pack (ZIP)
