Data center firm Vantage is looking to build a new campus outside Cardiff in Wales, the UK.

As reported by Wales Online, the company is aiming to develop a 10.9-hectare campus on land north off of the Ffordd Bro Tathan business park in St. Athan, a village west of Cardiff.

Vantage, via VDC CWL21 Limited, was recently granted permission from the Vale of Glamorgan Council for the demolition of existing buildings and the development of a data center and associated equipment and infrastructure, including a substation.

CarneySweeney, the planning services firm working with Vantage on the project, says the development could total 120MW.

Planning documents suggest three buildings will be developed. Each 32MW, two-story building will comprise a total of eight 4MW halls (four 4MW halls on each floor), with the halls served by 22 generators.

Historically, the site formed part of the wider RAF St Athan airfield, which opened in 1938. The site was acquired by the Welsh Government in 2006. Planning documents suggest Vantage has entered into a 999-year lease with the Welsh Government for the site.

The planning firm said the land was a “challenging site” due to the “levels of PFAS in the soil, the presence of defence structures associated with WWII, and the presence of dormouse and associated habitat.”

Vantage has been looking at this site for several years. The company previously filed for planning permission in 2022 via F1 Enzo Properties.

Vantage already has a presence in Wales from its 2020 acquisition of Next Generation Data, which runs a campus outside Cardiff and a site in Newport. Microsoft Azure is a major tenant at the Newport facility.

The Newport campus opened in 2010 on the site of a former LG semiconductor plant, a property that had stood vacant for more than a decade prior to development. At full build-out, the 46-acre site will total 2 million sq ft (186,000 sqm) and 148MW across three three-story buildings.

The company is also developing another Welsh campus at a former Ford car manufacturing plant in Bridgend. Site plans suggest it could total 10 buildings and three substations developed over a 10-15 year period. Construction could start in early 2026, developing in phases through to 2040.

The 1,200-acre Bro Tathan business park, owned by the Welsh government, has the potential to reach three million sq ft (278,709 sqm) of floorspace. The park is home to several companies, including Aston Martin Lagonda.