By Darian Macey, June 30 2026
Osborne is moving from enabling works and approvals into a larger commercial phase. With a July decision expected on the capability partner and managing contractors for the three core yard areas, DECNET has launched a dedicated Osborne State Development Area watchlist to help subscribers track the contract signals behind Australia’s most important naval infrastructure program.
The most visible sign of Osborne’s next chapter is a road. Eurimbla Way, officially opened by Australian Naval Infrastructure in April 2026, links Pelican Point Road to the Osborne precinct via an elevated bridge over the rail corridor. It was built to provide a safer, uninterrupted route for workers, freight and construction materials, and to remove the vehicle–train interface that would otherwise become a bottleneck as the shipyard workforce grows. ANI said construction began in November 2024 and was completed in just over 12 months, describing the road as early enabling infrastructure for the Nuclear-Powered Submarine Construction Yard.
The name is deliberate. Eurimbla was the first vessel built and launched at Osborne in 1921. More than a century later, Osborne is being prepared for a very different industrial task: construction of Australia’s future conventionally armed, nuclear-powered SSN-AUKUS submarines.
From Techport to sovereign shipbuilding precinct
Osborne’s modern defence role has been built in stages. Formerly known as Techport, the Osborne Naval Shipyard was established in 1987 and now comprises Osborne South and Osborne North. Osborne South supports major surface combatant construction, while Osborne North supports submarine maintenance. The common-use infrastructure includes a wharf, runway, dry berth, transfer system and shiplift added between 2007 and 2009.
Australian Naval Infrastructure, or ANI, sits at the centre of that evolution. Established in 2017 as a Commonwealth Government Business Enterprise, ANI’s role is to support the continuous naval shipbuilding program as the owner, developer and manager of infrastructure and related facilities. It is also tasked with managing access to that infrastructure so shipbuilding delivery is coordinated across programs and users.
That role makes ANI more than the precinct landlord. Since taking ownership of Osborne facilities in 2017, ANI has acquired land to the west and north of the existing precinct and led a major expansion and modernisation program. The Osborne South expansion delivered new shipbuilding halls and plant, enabled a “steel in, ships out” capability, and was handed to BAE Systems Maritime Australia in the second half of 2020 for the Hunter Class Frigate Program.
The earlier procurement trail shows how the current market has developed. Lendlease was selected in 2017 as managing contractor for the Osborne South Shipyard, with mobilisation starting in October 2017 and completion targeted to support Future Frigate construction in 2020. Laing O’Rourke then signed the contract for the Future Submarine Construction Yard at Osborne in 2018, a precursor to the much larger AUKUS-era yard now being progressed.
The AUKUS step-change
AUKUS has changed the scale of Osborne. The Australian Submarine Agency says the new Osborne construction yard will comprise three substantive areas: fabrication, outfitting, and a further area for consolidation, testing, launching and commissioning. ANI projections put the yard investment at about $30 billion over coming decades, with enabling works and the Skills and Training Academy expected to cost about $2 billion and more than $500 million respectively.
The physical scale is significant. ASA says the total floor area of the new Submarine Construction Yard is expected to be 10 times larger than the existing Osborne South Development project. Construction is expected to use 66 million man-hours and 126,000 tonnes of structural steel, while the Area 1 fabrication hall alone is expected to be 420 metres long.
The build enterprise is also now taking shape. ASC Pty Ltd and BAE Systems have been selected to build Australia’s SSN-AUKUS submarines, initially through a collaborative arrangement that is intended to lead to an incorporated joint venture. The Australian Submarine Agency executed a Collaboration Deed with ASC, BAE Systems and ANI on 15 March 2024, enabling work to begin on build preparation, supply-chain development and ongoing design and development of the Osborne yard.
The studies and enabling works that have led to now
The coming procurement phase is not emerging from a standing start. It follows years of land assembly, design work, environmental assessment and enabling infrastructure.
On the land side, the preferred site for the new yard is immediately adjacent to the existing Osborne Naval Shipyard on the Lefevre Peninsula, about 19 kilometres north of Adelaide. ANI’s preliminary enabling works package covered a car park, pedestrian bridge and road overpass, with the project area spanning about 22.5 hectares between Pelican Point Road and Mersey Road North and intersecting Falie Reserve.
The environmental and approvals path has been equally important. The Department of Climate Change, Energy, the Environment and Water says the Australian Submarine Agency is building the Submarine Construction Yard next to the existing Osborne Naval Shipyard, and that the strategic assessment covers land on the Lefevre Peninsula, parts of the Port Adelaide River and Gulf St Vincent. The Minister endorsed the Osborne Strategic Assessment Plan on 30 January 2026 and approved actions for building and operating the yard on 19 February 2026, with ASA reporting obligations extending to 2076.
Design and technical work has also been progressively de-risked. In May 2024, KBR and an AECOM–Aurecon joint venture were announced as concept design partners for the NPSCY. KBR is responsible for the steel processing and fabrication facilities, while the AECOM–Aurecon joint venture is delivering concept design for the rest of the site, including areas supporting outfitting, consolidation and commissioning.
The workforce pipeline is being built in parallel. The $480 million Skills and Training Academy at Osborne is being designed and delivered by ANI, with KBR and Architectus engaged as design partners and support from BAE Systems and ASC to align training with industry requirements. The campus is intended to simulate the submarine construction yard through trade workshops, classrooms and a central submarine mock-up area.
Osborne as a State Development Area
The South Australian Government is now proposing to establish the Osborne State Development Area under the State Development Coordination and Facilitation Act 2025. The proposed SDA formally recognises Osborne as one of the state’s most important industrial and economic areas, with the Coordinator General’s Office responsible for planning, coordinating and supporting development in the precinct. Consultation on the proposed boundary closes at 9am on Friday, 7 August 2026.
The proposed boundary is broader than the shipyard itself. It covers land and waters across the Lefevre Peninsula, the North Arm of the Port River, Gilman, Torrens Island, and key transport, freight, energy and utility corridors. That is commercially important because the Osborne opportunity will not be limited to shipyard buildings. It will also draw in road, rail, wharf, laydown, utilities, energy, water, wastewater, security, logistics, environmental, certification, design review and professional services packages.
The Coordinator General’s Office was established on 11 December 2025 as a statutory authority reporting to the Premier. Its purpose is to improve coordination, collaboration and efficiency across government planning, regulatory and approval systems. For Osborne, that means a single point of coordination for a precinct where Commonwealth defence delivery, state infrastructure, local planning, environmental regulation and private industrial investment all overlap.
Who is already involved
The public contract and project record shows a growing ecosystem around Osborne.
On the government side, the principal bodies include ANI, the Australian Submarine Agency, the Department of Defence, the Department of Finance, the Department of Climate Change, Energy, the Environment and Water, the South Australian Government, the Coordinator General’s Office, PlanSA, the Department for Infrastructure and Transport, and the City of Port Adelaide Enfield.
On the industry side, the precinct already includes major shipbuilding and sustainment tenants and delivery partners. ICN identifies BAE Systems as tenant for the Hunter Class program, Luerssen for the Offshore Patrol Vessel program, and ASC for Collins Class sustainment and life-of-type extension. ICN also notes that ANI is leading development of the NPS construction yard and will work with ASA, the Australian Shipbuilder Joint Venture, regulators, stakeholders and AUKUS partners.
The enabling and early works market has already drawn in KBR, AECOM, Aurecon, Architectus, Hansen Yuncken, ACCIONA, SMEC, Shamrock Civil and others. ICN’s public Osborne Naval Shipyard page shows awarded packages including Hansen Yuncken for the Skills and Training Academy and production demonstration facilities, Sarah Constructions for an outfitting support facility, McConnell Dowell for marine development works, Smart Fabrication for access and utility towers, Oliver Technologies for blast and paint equipment, Space Landscape Construction for landscaping, and McMahon Services for pedestrian bridge construction.
The July commercial trigger
The next major market signal is expected in July, when Helyx understands decisions are due on the capability partner and managing contractors for the three substantive yard areas.
Public signals are already visible. ICN Gateway lists an Osborne Naval Shipyard work-package category for “NPSCY Capability Partner & Prime Contractors Expressions of Interest”, while also showing 11 awarded work packages and under-evaluation opportunities for independent certification and technical authority support.
Helyx market intelligence indicates the capability partner role is between Worley Fluor and Laing O’Rourke/Amentum. For the managing-contractor roles, Areas one, two and three are understood to be contested by Hansen Yuncken, Multiplex, Webuild, Downer, Lendlease, Worley Fluor, CPB Contractors, Built, Laing O’Rourke, Bouygues and BESIX Watpac.
Those decisions matter because they will shape the next layer of contracting. Once capability partner and managing contractor roles are settled, the market should start to see clearer movement in design management, construction planning, procurement packaging, early trade engagement, temporary works, site services, certification, workforce facilities, logistics and specialist nuclear-safety-aligned infrastructure.
Why Helyx has launched an Osborne SDA watchlist
Osborne will not be one tender. It will be a long-running sequence of contract notices, shortlisted panels, managing-contractor packages, variations, design appointments, enabling works, professional services, utilities packages and downstream subcontracts. Many of those signals will appear across different channels: AusTender, ICN, state planning systems, agency announcements, corporate releases and supplier disclosures.
That is why Helyx has released a dedicated Osborne State Development Area contracts watchlist.
The watchlist is designed for subscribers who need to understand not just what has been awarded, but what each contract means for future commercial movement. It tracks Osborne Naval Shipyard, the Nuclear-Powered Submarine Construction Yard, the Skills and Training Academy, enabling infrastructure, state coordination activity and adjacent transport, port, utility and industrial packages.
For contractors, consultants, suppliers and investors, Osborne is becoming a standing market. The July announcement is the next trigger, but it will not be the last. As the SDA process matures and the yard moves from approvals and enabling works into full-scale delivery, the competitive advantage will sit with organisations that can see the contract chain early, understand who is moving, and position before packages reach the open market.
Helyx subscribers can now follow the Osborne State Development Area watchlist to stay up to date on contract awards, approaches to market, variations, shortlisted bidders and downstream commercial movement across the precinct.
Author: Darian Macey
Darian is a former Engineering Officer with the RAE with tertiary qualifications in Engineering and Project Management. He is a leading practitioner within Australia's NSI sector with previous employment in Government, project management and building contractor organisations.
