The Mamre Road Data Centre Campus is advancing through planning assessment in Western Sydney, Australia, with a potential capacity exceeding 1GW. The proposed development would transform a 52-hectare site at Kemps Creek into a major digital infrastructure hub.
AirTrunk plans to develop and operate the campus, subject to planning approval. The project now carries greater scale than the original US$3.3 billion proposal reported in 2025. Current planning documents and 2026 reporting indicate a potential 1.2GW capacity and investment exceeding A$5 billion.
The development represents a major expansion of Western Sydney’s data centre construction pipeline. It also reflects growing demand for infrastructure supporting artificial intelligence, cloud computing and digital services.
Mamre Road Data Centre Campus moves through 2026 planning assessment
The Mamre Road Data Centre Campus remains under assessment through the NSW planning system in 2026. The planning portal identifies the proposal as a State Significant Development application. The current proposal covers construction and 24/7 operation of a large-scale data center campus. It includes six four-storey data center buildings with supporting infrastructure.
The latest project documents indicate a staged construction programme. The first phase was scheduled to begin in 2026, followed by additional phases. However, the project had not reached confirmed construction commencement by August 2026. Planning approval remains the key milestone before major building works can proceed.
On our previous report, the project was approximately $3.3 billion, based on an estimated A$5 billion investment. However, the current proposal has attracted estimates above A$5 billion. Additionally, 2026 reports place the planned power capacity at approximately 1.2GW. The project therefore remains one of Australia’s most ambitious proposed data centre developments.
Mamre Road Data Centre Campus expands its construction scope
The proposed campus would occupy the Summit site at 706–752 Mamre Road, Kemps Creek. ISPT acquired the 52-hectare property through its Core Fund in July 2024.
The original proposal described six four-storey buildings covering approximately 400,000 square metres. It also planned 24 data halls with capacity between 600MW and 1GW.
The 2026 planning material now points to a potential 1.2GW power capacity. That would make the facility the first Australian data centre project to exceed 1GW.
The campus would also require substantial mechanical and electrical infrastructure. Current documents identify hundreds of cooling units and diesel backup generators.
The development would include 936 cooling units and 852 diesel backup generators under the planning description. It would also require 14,430 kilolitres of diesel storage.
The project would further include lithium-ion battery storage infrastructure and multiple electrical substations. Internal roads and parking would support the operational campus.
The development could create approximately 500 construction jobs and another 500 operational positions.
The construction programme also connects with planned transport infrastructure around the Mamre Road Precinct. That infrastructure remains important for managing access to the expanding Western Sydney Employment Area.
Mamre Road Data Centre Campus faces infrastructure and environmental concerns
The project’s unprecedented scale has generated concerns from nearby communities, schools and environmental groups. Those concerns focus on power demand, water use, noise, emissions and construction impacts.
The proposed campus could consume about 22.4 million litres of water annually. That demand adds another infrastructure consideration for Western Sydney.
The project’s power requirement also comes as Australia’s data centre sector expands rapidly. The Australian Broadcasting Corporation reported that more than $150 billion could enter Australia’s data centre pipeline.
Consequently, the Mamre Road development illustrates both the opportunities and pressures created by AI infrastructure investment.
AirTrunk’s proposed campus also connects directly with Australia’s wider data centre market. The recent report on Macquarie’s potential bid for Stack APAC data centres examines another major digital infrastructure investment. The Stack portfolio demonstrates how investors increasingly target large-scale data centre assets across Australia and the wider Asia-Pacific region.
The Mamre Road project now awaits further planning progress before construction can fully advance. Its eventual approval could establish a new benchmark for Australian hyperscale data centre construction.
Scope of Implementation on the AirTrunk Data Center Campus in Australia
The AirTrunk data center campus in Australia is expected to host various amenities to ensure its operations. It includes 936 cooling units and 852 diesel back-up generators. Documents also suggest the site would feature 7,488 cabinets for lithium-ion battery storage. TFurthermore, at least one on-site substation is planned and the potential for three others. The innovative approach facilitates in solving the power demand challenges facing data center developments in 2025.
Australian real estate firm ISPT lists 706-752 Mamre Road on its website as Summit. It is a 52-hectare land holding master planned for 245,000 sqm (2.6 million sq ft) of industrial floor space. Construction forecast on the project sets its commencement in early 2026. Conversely, the company acquired the site in July 2024 via its ISPT Core Fund. AirTrunk has data center campuses in operation and development in Sydney (x3), and Melbourne in Australia. It also has data center campuses in Singapore, Malaysia and two in Tokyo. Furthermore, there is one more in Osaka, Japan.
Project Fact Sheet
Name: Mamre Road Data Centre Campus.
Project type: Hyperscale data centre campus.
Location: 706–752 Mamre Road, Kemps Creek, Western Sydney, New South Wales.
Site area: Approximately 52 hectares.
Original reported investment: $3.3 billion.
Original Australian value: Approximately A$5 billion.
Current reported investment: More than A$5 billion.
Original planned capacity: Up to 1GW.
Current reported capacity: Approximately 1.2GW.
Planned data halls: 24.
Planned floor area: Approximately 400,000 square metres.
Cooling equipment: 936 cooling units.
Planned buildings: Six four-storey data centre buildings.
Backup generation: 852 diesel generators.
Diesel storage: 14,430 kilolitres.
First construction phase: Planned for 2026, subject to approvals.
Construction status: Major construction had not commenced by August 2026.
Planning status: State Significant Development assessment.
Employment: Approximately 500 construction jobs and 500 operational jobs.
Primary demand drivers: Artificial intelligence, cloud computing and digital services.
Project Team
Proposed developer/operator: AirTrunk.
Site owner: ISPT through its Core Fund.
Proposed site acquisition: AirTrunk has been identified as the potential buyer, subject to approval.
Planning authority: NSW Department of Planning, Housing and Infrastructure.
Local government: Penrith City Council.
Site: Summit industrial property at Kemps Creek.
Investment stakeholder: IFM Investors, parent of ISPT.
Leave a Reply