Data centres in Cardiff & Newport
South Wales is the UK's fastest-emerging data centre corridor, anchored by Vantage's large Cardiff campus and drawing new entrants on the back of available power, renewables and sub-2 millisecond links to London.
Indicative estimates · public sources
The Cardiff & Newport data centre market
South Wales has become the UK's most credible alternative to the constrained South East for large-scale data centres. The corridor runs between Cardiff and Newport, anchored by Vantage's campus at Imperial Park, the former Next Generation Data site, one of the largest single data centre buildings in Europe. New entrants such as Latos are adding consented hyperscale capacity, and the region hosts cloud regions from Oracle in Newport and Microsoft in Cardiff. The pitch is straightforward: available grid power, 100% renewable supply, lower land costs than Slough, and low-latency fibre to London. Power availability and AI demand are pulling capacity west, with the corridor positioned as a renewable-powered home for hyperscale and AI workloads that cannot secure timely connections in West London.
What limits new data centre capacity in Cardiff & Newport
Grid connection timing, transmission headroom and cooling-water access are usually the real constraints on new Cardiff & Newport capacity, not land.
South Wales offers grid headroom that the South East cannot, which is the corridor's core advantage. Vantage's Cardiff campus reports tens of megawatts already connected on 100% renewable power with further capacity held in reserve, and Latos plans grid supply backed by a neighbouring battery energy park. Connections run through the National Grid and the Welsh distribution network, with proximity to renewable generation strengthening the low-carbon case. As in every UK market, securing a firm connection date remains the gating factor, but the corridor's relative availability of power is why new capacity is forming here.
Indicative · compiled from public sources
The Cardiff & Newport data centre pipeline
Planning, grid and tender activity in South Wales, by build stage, tracked from public records. Site names and sources unlock on verification.
Operators in Cardiff & Newport
Data centres in Cardiff & Newport, answered
How many data centres are in Cardiff & Newport?
Data Centre Axis tracks 0 known existing data centres in Cardiff & Newport in its public directory, against roughly 120 MW of operating capacity and 150 MW under construction (indicative figures from public sources). That covers colocation, wholesale and hyperscale digital infrastructure. Planning and grid-stage projects are tracked privately and released to verified members.
What types of data centre are in Cardiff & Newport?
The Cardiff & Newport market spans colocation facilities, wholesale and hyperscale data centres, and a growing set of AI-ready sites built for high power density measured in megawatts. The mix of digital infrastructure and the available power differ site by site.
Which operators run data centres in Cardiff & Newport?
Operators with public-record presence in the Cardiff & Newport market include Vantage Data Centers, Ark Data Centres, Digital Realty (UK), VIRTUS Data Centres. See the operators directory for the full list and each operator's footprint.
How do I find, lease or buy data centre capacity in Cardiff & Newport?
Data Centre Axis works privately with buyers, operators and funds to source Cardiff & Newport sites, powered land and data centre capacity, and to assemble diligence from planning, grid, water and fibre records. Get verified to start a mandate.
Source or assess a site in Cardiff & Newport.
Bring the mandate and we will work the public record, site options, funding routes and buyer fit privately.