Australian operator Canberra Data Centres (CDC) is planning a large data center campus in Sydney.

Mecone Group Pty Limited, on behalf of CDC, recently filed a SEARS request with New South Wales for a 504MW data center facility at 105 and 113 Hollinsworth Road in Northwest Sydney’s Marsden Park.

The 21-hectare project will comprise six four-story data center buildings and a 720MW substation. Each building will feature 24 data halls, totaling around 255,110 sqm (2.7 million sq ft), and 40 generators.

The company is also planning to develop an additional 5MW facility on the site. The company is filing for permission with Blacktown City Council.

The site, within the Marsden Park Industrial Precinct, is largely undeveloped. According to documents, CDC aims to invest AU$1.4 billion (US$934.5m) in the project.

CDC currently operates a campus in the Eastern Creek area of Sydney. The 281MW campus features four operational data centers – EC1, EC2, EC3, EC4 – with and two under construction (EC5, EC6).

The company also has Australian sites in operation and development in Canberra, Melbourne, and in Auckland, New Zealand.