A gigawatt-scale data center campus could be coming to Sydney, Australia.

Project management firm Plan Project Management has filed a SEARS application with the New South Wales Government for the Mamre Road Data Centre Campus.

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). Within the planning documents, the site is described as having capacity from 600MW up to 1GW across 24 data halls.

The 52-hectare site, at 706-752 Mamre Road in the Kemps Creek area of the city, would include 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 potentially up to four.

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.

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.

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 – spanning office, retail, industrial, education, health, and residential properties. ISPT is a wholly-owned subsidiary of IFM Investors.

The company has previously filed to develop a data center in the North Ryde area of Sydney.

Microsoft is also developing a data center campus in the Kemps Creek area.