GreenSquare Opens SYD1 Data Centre in Western Sydney After Adaptive Reuse of 1995 Facility, Hosting Sharon AI's NVIDIA Blackwell Ultra GPUs

GreenSquare has brought the first stage of its SYD1 data centre campus online at Norwest Business Park in Western Sydney, converting a facility originally opened in 1995 into a high-density compute site built for artificial intelligence workloads. The project reflects a growing industry push to extend the life of legacy infrastructure rather than pursue demolition and new construction, as operators seek to add capacity faster and with far lower embodied carbon.

The first stage was delivered in eight months. GreenSquare retained the original building's slab and much of its structure, relocating the data halls to the ground floor so the facility could accommodate latest-generation, high-density compute without additional structural reinforcement. The approach increased IT capacity within the original building footprint by 275% while substantially reducing structural carbon, according to the company.

The site's first customer is Sharon AI, a NASDAQ-listed NVIDIA Cloud Partner, which will deploy approximately 8,200 NVIDIA Blackwell Ultra GPUs at the facility — a significant deployment of NVIDIA HGX B300 infrastructure in Australia.

GreenSquare Chief Technology Officer Joshua Martens framed the project as a deliberate rethinking of what an ageing asset could deliver. "We saw an opportunity to give a 30-year-old data centre a completely new purpose," he said. "By rethinking the building's configuration, introducing prefabricated systems design, and using the latest technology to reduce carbon, we've created a facility that can support some of today's most demanding compute requirements while using resources far more efficiently."

SYD1 was engineered for energy and water efficiency, with a projected power usage effectiveness of 1.20 and potable water usage effectiveness of less than 0.1 litres per kilowatt-hour — both below NSW Government guideline benchmarks of 1.25 and 1.0 respectively. A closed-loop cooling system operates without evaporative cooling for approximately 96% of the year, replacing the building's original water-intensive cooling towers, while rainwater harvesting is expected to offset roughly 10% of annual cooling water requirements.

An independent assessment by engineering consultancy TTW found the adaptive reuse retained 92% of the building's existing structural carbon. Combined with low-carbon concrete, the project achieved 76% lower structural upfront carbon per square metre and 93% lower carbon per kilowatt of IT capacity compared with a new-build facility.

Main construction began in February 2026, with around 400 workers on site at peak and teams operating around the clock during critical stages. The project recorded more than 350,000 hours worked without a lost-time injury. GreenSquare worked with Erilyan on construction and delivery and with Fredon on electrical infrastructure and commissioning.

The completed stage forms part of a broader campus plan. The NSW Government's Investment Delivery Authority has endorsed support for a proposed 80 MW second stage. Backed by programs managed by Partners Group, GreenSquare is expanding its Australian data centre portfolio following the delivery of SYD1 Stage 1, with a continued focus on responsible development, resource efficiency and long-term performance.