AirTrunk has been named as the potential buyer for a 1GW data center campus planned for Western Sydney, Australia.

The Blackstone-owned firm is set to purchase the site, which is being developed by property investor ISPT, if planning permission is granted for the data center project.

News of AirTrunk’s interest in the site was revealed by Green Street News, which said a preliminary agreement is in place between the parties.

As reported by DCD, project management firm Plan Project Management filed a SEARS application with the New South Wales Government for the Mamre Road Data Centre Campus in September. It is located at 706-752 Mamre Road in the Kemps Creek area of Sydney.

The AU$5 billion (US$3.3bn) project is described as a 1GW data campus totaling six four-story data center buildings spanning 400,000 sqm (4.3 million sq ft). The site is described as having a capacity from 600MW up to 1GW across 24 data halls.

It includes 936 cooling units and 852 diesel back-up generators. Documents suggest the site would feature 7,488 cabinets for lithium-ion battery storage. At least one on-site substation is planned, and the potential for three others.

Australian real estate firm ISPT lists 706-752 Mamre Road on its website as Summit, a 52-hectare land holding masterplanned for 245,000 sqm (2.6 million sq ft) of industrial floor space, with construction forecast to commence in early 2026. The company acquired the site in July 2024 via its ISPT Core Fund.

Established in 1994 by a group of Australian superannuation funds, ISPT has a property portfolio totaling more than AU$20.4 billion (US$13.02bn) across Australia, including office, retail, industrial, education, health, and residential properties. ISPT is a wholly-owned subsidiary of IFM Investors.

The firm is developing a large industrial warehouse campus within the same park – known as the Kemps Creek Warehouse Logistics and Industrial Facilities Hub – which is described as separate from the data center proposals.

Founded in 2018, AirTrunk was acquired by Blackstone and Canada Pension Plan Investment Board for US$16.1bn last year in what was the largest-ever deal in the space at the time.

AirTrunk has data center campuses in operation and development in Sydney (x3), and Melbourne in Australia, as well as Singapore; Hong Kong; Johor, Malaysia; Tokyo (x2), and Osaka, Japan.