When building defects or construction disputes arise in New South Wales, one of the most important decisions an owner, strata committee, builder, or developer can make is who they engage as an expert. A skilled expert can identify defects accurately, explain the cause, and provide strong evidence to support settlement or legal proceedings. By contrast, an inexperienced expert can create costly problems, including unclear conclusions, procedural weaknesses, and reports that carry little weight in NCAT or the courts. In many disputes, the quality of the expert evidence is a key factor in whether a claim succeeds.

Building disputes commonly involve competing explanations. Owners may claim defective workmanship or non-compliance, while builders may argue the issue is caused by poor maintenance. In strata matters, where defects can extend across common property and multiple lots, the complexity increases further. An experienced expert helps cut through these issues by distinguishing symptoms from causes, assessing compliance with relevant standards, and identifying what rectification is genuinely required. This often shapes the entire claim, including who may be responsible and how the dispute is approached.

Just as important as technical expertise is the ability to prepare a report that is legally reliable. Many consultants can inspect and list defects, but far fewer understand what is required for a litigation-compliant report. A proper report must be structured, evidence-based, and transparent, showing what was observed, what documents were reviewed, which standards were applied, and how each conclusion was reached. If the reasoning is vague, unsupported, or overly biased, the report is more likely to be challenged and may ultimately be given little weight by the Tribunal or the court.

Choosing the right expert also matters because the expert’s findings often guide the rectification scope and the costs that may later be recovered. If the scope is incomplete or excessive, builders and developers commonly argue that rectification costs were unreasonable. A well-prepared expert report helps defend both the necessity and the reasonableness of the works, which can be crucial when recovering costs.

Good expert evidence also drives settlement. Most defect disputes resolve before a final hearing, and parties are more likely to negotiate seriously when the claim is supported by a credible report. Poor-quality reports often have the opposite effect, leading to delay, denial, and greater litigation expense.

Finally, it is important to understand that engaging an expert is not always limited to inspection and report writing. In many matters the expert will only be required to prepare a report, particularly where the dispute resolves early. However, if the matter proceeds to a final hearing, the expert may be required to give evidence and be cross-examined on their report and opinions. That is why selecting an expert with litigation experience is essential—because the expert must be capable not only of identifying defects, but also of defending their conclusions under scrutiny.

Ultimately, a strong expert report can protect your position, improve settlement prospects, and significantly strengthen your case if proceedings become necessary. In NSW building disputes, engaging the right expert early is often one of the most effective steps you can take.

At Papallo Kouchoo Lawyers, we work alongside highly regarded building experts across NSW and have extensive experience managing expert evidence in building defect matters. We can review expert reports, identify any gaps or weaknesses, and assist with briefing an expert to ensure the report is suitable for negotiation, NCAT or court proceedings. If you have a building defect claim, contact us to book a free initial consultation.