Disputes are part of building — handling them well is what protects your margin and your reputation. Here’s the practical ladder for Australian builders.

The common causes

Most disputes trace back to a handful of things: unpaid or late progress claims, variations that weren’t documented or agreed, defects (real or alleged), and delays. Nearly all of them are easier to prevent than resolve — a clear contract, agreed variations in writing, and good site documentation stop most disputes before they start.

Step 1: Resolve it early

Go back to the contract and the records. A signed contract, written variations, dated site photos and a documented schedule usually settle a disagreement fast because the facts aren’t in question. This is why keeping everything against the job matters — when you can show what was agreed and what was built, most disputes deflate.

Step 2: Security of Payment (for payment disputes)

If it’s about money owed, every Australian state and territory has a Security of Payment Act designed to keep cash flowing. It lets you serve a payment claim and, if it’s not paid, take it to adjudication — a fast, low-cost process (weeks, not months) where an independent adjudicator decides what’s payable. It’s one of the most powerful tools a subcontractor or builder has, and it exists specifically so you don’t have to go to court to get paid.

Step 3: Mediation and the building authority

For non-payment disputes, mediation (a neutral third party helping you reach agreement) is faster and cheaper than litigation and keeps relationships intact. Each state also has a building authority that handles building disputes and complaints — QBCC in Queensland, the VBA and Domestic Building Dispute Resolution Victoria in Victoria, the NSW Building Commission, and equivalents elsewhere — many offering low-cost dispute resolution before things escalate.

Step 4: Tribunal or court (last resort)

State tribunals (VCAT, NCAT, QCAT and others) and courts are the final step — slower and more expensive, so worth avoiding where the earlier steps can resolve it. Get legal advice before this point.

The best defence is documentation

The builders who win disputes are the ones who can produce the contract, the agreed variations, the dated photos and the schedule on demand. Keeping all of that in one place per job — as Built Simple does — turns a “he said, she said” into a documented fact, which is where most disputes are actually won.

Frequently Asked Questions

How do I resolve a payment dispute in construction in Australia?

Use the Security of Payment Act in your state. It lets you serve a payment claim and, if unpaid, take it to adjudication, a fast and low-cost process where an independent adjudicator decides what is payable, usually within weeks rather than going to court.

What are the most common construction disputes?

Most disputes involve payment (unpaid or late progress claims), variations that were not documented or agreed, defects, and delays. Clear contracts, written variations and good site documentation prevent most of them.

Who handles building disputes in Australia?

Each state has a building authority that handles building disputes and complaints, such as the QBCC in Queensland, the VBA in Victoria, and the NSW Building Commission. Payment disputes go through Security of Payment adjudication, and tribunals like VCAT, NCAT and QCAT are the last resort.