Construction Costs Rise 1% in Q3 2026 — What the Cordell Index Means for Development Finance and Bridging Loans

Key takeaway: CoreLogic's Cordell Construction Cost Index rose 1% in Q3 2026, with Western Australia leading all states as plastics and materials prices climb — developers relying on construction and development finance should factor rising costs into feasibility models and loan structures now.

What the Cordell Construction Cost Index Shows This Quarter

CoreLogic's Cordell Construction Cost Index — Australia's benchmark measure of residential and commercial construction input costs — rose by 1% in the third quarter of 2026, signalling a return to upward momentum after several relatively stable quarters.

Western Australia led all states in quarterly cost growth, driven partly by rising plastics prices, which affect a wide range of building inputs from pipes and fixtures to insulation and cladding. The WA result reflects both the state's above-average construction pipeline and supply chain dynamics specific to the west coast market.

The renewed cost uptick comes at a sensitive time: the RBA has held the cash rate at 4.60% since 30 September 2026, with the next decision due 3 November 2026. This creates uncertainty for developers finalising feasibility models ahead of new project starts — every percentage point increase in construction costs chips away at project viability.

Why Construction Cost Movements Matter for Development Finance

Property developers rely on feasibility analysis to determine whether a project is viable — and construction costs are one of the most volatile inputs in that model. A 1% quarterly rise, while modest in isolation, can materially affect:

• Loan-to-cost ratios (LTC): As construction costs rise, the absolute dollar amount needed to fund a project increases, potentially pushing above lender thresholds
• Contingency buffers: Most construction finance agreements require a contingency reserve (commonly 10–15% of hard costs); rising input prices can exhaust these reserves faster than projected
• Exit strategy timelines: Developers may hold projects longer if rising costs compress pre-sale margins, affecting the repayment timeline on bridging facilities

"When construction costs trend upward alongside high interest rates, developers need a finance partner who can reassess loan structures mid-project — not just issue a static approval at the start."

The WA Market: What Regional Cost Divergence Means for Development Finance

Western Australia's leadership in quarterly cost growth reflects a broader trend: Australia's construction market is not uniform. Costs in WA, driven by strong resource-sector demand and a concentrated construction labour pool, have historically moved differently from the eastern seaboard. For developers operating across multiple states, this creates complexity in construction finance terms that a flexible non-bank lender must be equipped to manage.

For investors and developers considering WA projects — particularly residential subdivisions, commercial fit-outs, or industrial facilities — the current cost environment should be factored into borrowing capacity calculations and development loan term structures from the outset.

Development Finance Checklist in a Rising Cost Environment

If you have a project underway or are planning one, consider:

1. Has your quantity surveyor updated cost estimates in the past 90 days?
2. Does your construction finance facility include a cost overrun provision or contingency drawdown?
3. Is your exit strategy — pre-sales, refinance, or property sale — robust enough to withstand a 5–10% cost increase?
4. Is your lender able to reassess and restructure mid-project if costs escalate?

What This Means for Borrowers and Property Developers

Whether you are a residential developer requiring construction finance, an investor renovating an investment property, or a commercial property owner undertaking a building upgrade, rising construction costs affect your bottom line and your finance structure.

At MPFG Capital (ACL 553698), our Commercial Loan and Bridging Finance products are designed for the realities of the Australian construction environment — including the ability to reassess and restructure loan facilities as project costs evolve. Unlike major bank lenders whose construction finance follows rigid approval templates, non-bank lenders can offer greater flexibility at the critical moments when cost overruns emerge.

FAQ

How do rising construction costs affect my development finance approval?

Construction cost increases can affect your loan-to-cost ratio, contingency requirements, and total loan amount. Lenders typically reassess feasibility at key project milestones; if costs have risen significantly since initial approval, you may need to provide updated quantity surveyor reports and revised drawdown schedules.

What is the Cordell Construction Cost Index?

The Cordell Construction Cost Index (CCI), published quarterly by CoreLogic, measures changes in the cost of residential and commercial construction materials and labour across Australia. It is widely used by developers, quantity surveyors, and lenders to benchmark construction cost trends and update project feasibilities.

Can I use a bridging loan to cover construction cost overruns in Australia?

In some circumstances, yes. Bridging finance from non-bank lenders can be used to cover short-term funding gaps arising from cost overruns, subject to available equity in the security property and a clear exit strategy. MPFG Capital (ACL 553698) assesses each request on its specific merits — contact us for an initial eligibility discussion.

This article is general information only and does not constitute financial or credit advice. All applications are subject to credit assessment by MPFG Capital (ACL 553698).