How water infrastructure is shaping commercial and industrial growth in Port Macquarie
Water security is emerging as a critical enabler of future development across the Mid North Coast, with major investment underway to support population growth, industrial expansion and new commercial precincts. In Port Macquarie, a coordinated program of water and wastewater infrastructure upgrades is being delivered to ensure long-term servicing capacity well beyond current demand horizons (Port Macquarie-Hastings Council, 2025).
Cowarra Water Supply Scheme supporting long-term growth
The Cowarra Water Supply Scheme represents one of the most significant infrastructure investments in the region’s history. A multi-year State Significant Infrastructure project, the scheme is designed to secure water supply for Port Macquarie and surrounding communities beyond 2057 (Port Macquarie-Hastings Council, 2025). The scheme includes a new water treatment plant at Cowarra Dam, approximately 30km west of Port Macquarie, and an approximately 16km gravity-fed Northern Arm Trunk Main connecting the treatment facility through to Port Macquarie’s reservoir network via Burrawan Forest Drive and the Oxley Highway. A Southern Arm Trunk Main is also planned to service Bonny Hills, Lake Cathie and the Camden Haven (Port Macquarie-Hastings Council, 2025).
Existing wastewater infrastructure has been operating near or at capacity, highlighting the need for expansion as population projections indicate growth beyond 120,000 residents over the next two to three decades (Port Macquarie-Hastings Council, 2025). The NSW Government’s Safe and Secure Water Program has partnered with Port Macquarie-Hastings Council to support delivery, funding concept design, environmental assessment and procurement documentation (NSW Government, 2025). From an investment perspective, long-term water security effectively removes a key constraint on land release. This provides greater certainty for developers planning commercial precincts, industrial estates and mixed-use projects that rely on guaranteed utility servicing.
Thrumster wastewater scheme unlocking the western corridor
The Thrumster and Sancrox corridor is currently one of the most active growth areas in the region. At its centre is the Sovereign Hills masterplanned community, a development exceeding $1 billion in value. The project is planned to deliver up to 2,000 residential lots alongside a town centre, business park, health facilities, schools and childcare services, ultimately supporting a population of approximately 7,000 to 8,000 residents (AreaSearch, 2025). Delivery of this growth is closely linked to wastewater infrastructure capacity. The Thrumster Wastewater Treatment Plant is planned to service the broader Thrumster, Sancrox and Fernbank Creek catchments, with construction and commissioning targeted for completion around 2028. The facility is also expected to reduce pressure on the existing Port Macquarie wastewater system (Port Macquarie-Hastings Council, 2025).
In early 2026, both the Cowarra Water Supply Scheme and Thrumster Wastewater Scheme were classified as State Significant Infrastructure projects, reinforcing their strategic importance to regional planning. Together, the Cowarra and Thrumster schemes are projected to support more than 7,000 additional dwellings across the local government area, with further indirect capacity created through infill development opportunities (NSW Planning Portal, 2026). In parallel, planning work is underway for rezoning within the Thrumster Business Park to enable mixed-use outcomes, including commercial floorspace, retail and residential development of up to 170 dwellings. This reflects the gradual evolution of the precinct into a more self-contained employment and services hub (NSW Planning Portal, 2025).
Implications for commercial and industrial property
The combined water infrastructure program is effectively reshaping the development pipeline across Port Macquarie. Reliable servicing capacity is a fundamental requirement for new commercial and industrial projects, and the scale of current investment provides a clearer pathway for long-term land release. In practical terms, this unlocks confidence for developers and investors to progress industrial estates, business parks and mixed-use precincts that would otherwise be delayed by utility constraints. It also supports higher-density outcomes within established growth corridors, particularly in Thrumster and surrounding western suburbs.
As servicing capacity expands, the region is positioned to transition from incremental growth to structured, infrastructure-led development. For commercial property markets, this creates a clearer framework for investment timing, precinct activation and long-term demand creation. If you are considering selling or leasing commercial property in Port Macquarie, Commercial Collective can help you position your asset in line with infrastructure investment, precinct growth and evolving buyer and tenant demand. Speak with our team today to discuss your property strategy.
