Data center firm Stack Infrastructure is planning a large new data center in Sydney, Australia.

In a SEARS application with the New South Wales government, Stack has filed to develop a 450MW data center campus at 78 Lockwood Road in Penrith’s Erskine Park.

Stack aims to construct a three-story facility spanning 82,020 sqm (882,855 sq ft). It would include 156 backup generators.

The 7.7-hectare site is located on Lenore Drive within the 140-hectare Fitzpatrick Industrial Estate. The company looks set to invest AU$650 million (US$405.3m) in the project.

The site is currently owned by real estate firm ESR, which lists it as the Erskine Park Logistics Estate. ESR subsidiary Logos – which has previously partnered with Pure DC for developments in Malaysia – acquired the site last year.

ESR has a growing data center development business of its own and said in the listing it aimed to build a multi-unit logistics estate offering more than 40,000 sqm (430,556 sq ft) of gross lettable area – the first of six units was set to be delivered by the end of the year.

Reports from last year suggested ESR had acquired land in Erskine Park that had previously been earmarked as a data center for Digital Realty – though the companies never confirmed this, and it’s unclear if this is the same plot.

After previously investing in T5, IPI launched Stack in 2019 after merging several T5 data centers with three Infomart facilities acquired the previous year into a new operator. Stack’s owner, IPI, was recently acquired by Blue Owl.

Today, the company has some 4GW in operation or development globally, with another 6GW planned in the future. Stack announced plans to expand into APAC in October 2021; across the region, the company has projects in Japan, Australia, and South Korea.

Stack entered the Australian market in 2022 after taking over three development projects owned by local developer Hickory.

Hickory first announced its ambition to move into data centers in June 2021, announcing a 25,000 sqm (269,000 sq ft) facility in Melbourne, and broke ground on the project in late 2021.

Stack launched the Melbourne site in 2023. It is also planning a 28MW data center in Hume, Canberra, and a 24MW data center in Wangara, Perth – though the status of the latter project is unclear.