An expert witness report is an independent technical assessment prepared for a legal dispute, written to the court’s rules of evidence rather than for either side’s argument. MJ Engineering Projects prepares expert witness reports for building defect and construction disputes across Sydney, Newcastle and Canberra, engaged by lawyers, owners corporations, insurers, builders and homeowners.
An expert witness report sets out an independent expert’s findings on the technical questions in a dispute: what the defects are, what caused them, whether the work complies with the NCC and the relevant Australian Standards, and what rectification will cost. Unlike an ordinary inspection report, it is prepared under an expert witness code of conduct, which means the engineer’s duty is to the tribunal.
That independence is the whole point. A report written to please a client gets pulled apart in cross-examination. A report that states what the evidence supports, including the parts that do not help the engaging party, is the one a tribunal relies on. We write the second kind, and we tell clients that before we start.
Most of our expert witness engagements involve residential and strata defect claims in NSW, where timing is set by statute. Under the Home Building Act 1989 (NSW), the warranty period is six years from completion for a major defect, such as a failure of waterproofing, fire safety systems or a load-bearing element, and two years for other defects. Miss the window and the claim is gone, however strong the evidence.
Common situations where a building expert witness report is engaged:
If you are still inside the statutory warranty period but not yet in a formal dispute, a building inspection report may be the better first step. It documents the defects on the record and can later support an expert witness engagement if the matter escalates.
With over 18 years of industry expertise, our Expert Witness consultants at MJ Engineering Projects provide independent, reliable and technically sound assessments for building disputes and defect claims. We are recognised for delivering clear, evidence-based reports and expert testimony that stand up to scrutiny in tribunals and courts.
Our team combines deep technical knowledge of building systems with strong communication skills to explain complex issues in a way that is easily understood by legal representatives, adjudicators and stakeholders. By applying proven methodologies and adhering to statutory requirements, we ensure that every case is supported with accurate findings and practical recommendations. Our process is designed to assist clients in achieving fair, timely and cost-effective outcomes.
An engineer inspects the building and documents the defects: photographs, moisture readings, measurements and, where needed, diagnostic testing. On a recent engagement, this covered a 355-lot multi-building complex in Parramatta. On others, it is a single balcony. To arrange an inspection, call 1800 953 935.
We prepare the expert witness report to the format your legal team and the forum require, addressing cause, code compliance and rectification scope with costings. Findings are written in plain language a member or judge can follow, with the technical evidence annexed.
Many matters settle once the technical position is documented. We support negotiations with the builder or developer and can review a proposed scope of rectification before anyone signs a deed.
Where the matter proceeds, we give evidence at NCAT or in court, participate in expert conclaves and prepare joint reports with the other side's expert as directed.
After settlement or judgment, we can design and superintend the rectification works through our remedial building services, so the outcome on paper becomes a repaired building.
Fees depend on the size of the building, the number of defects in dispute and the forum’s requirements. A report on a single dwelling is a very different scope from a multi-building strata claim with expert conclaves.
We quote a fixed fee proposal after a short scoping discussion, staged so you can commission the inspection and report first, with tribunal attendance and conclave work costed separately if the matter runs.
With years of experience in the construction industry, MJ Engineering Projects handles each case with valuable technical knowledge and practical insights. Our building compliance experts have expertise in local laws and standards, making our reports credible and legally sound. Whether you’re handling construction defect claims or seeking building dispute resolution in Sydney, we provide detailed reports and strong representation to protect your interests.
With more than eighteen years of proven experience in remedial engineering, our firm has built a strong reputation for delivering reliable and long-lasting results. As registered design practitioners, we specialise in repairing building defects across a wide range of projects, from heritage façades that require delicate restoration to modern high-rise towers that demand technical precision.
Our structured project management approach, combined with thorough quality control processes, ensures every repair is handled with efficiency and care. We focus on minimising disruption, controlling costs and tailoring repair strategies to meet the unique requirements of each client.
This commitment to detail and excellence enables us to consistently provide durable, value-driven solutions that stand the test of time.
Our engineers bring extensive expertise in remedial engineering, supported by years of specialised experience and a detailed understanding of industry standards. We take pride in delivering tailored remediation strategies that address both visible and hidden defects across a wide range of building types.
By staying informed of changing regulations and compliance requirements, our team ensures every project achieves technical excellence and long-term durability. We also place a strong emphasis on sustainability, applying environmentally responsible practices and innovative methods wherever possible.
From diagnosing complex issues to implementing cost-effective repair programs, we are committed to providing clients with outcomes that are reliable, compliant and built for the future.
We have successfully completed inspections and remedial work on more than one thousand residential, commercial and industrial buildings across Sydney. This extensive experience allows us to identify and resolve issues with accuracy, from water ingress and façade deterioration to concrete spalling and structural concerns.
Each project benefits from a customised repair strategy designed to achieve durability, compliance and lasting performance. Our large and diverse portfolio equips us to anticipate challenges, optimise resources and streamline delivery to minimise site disruption.
With this proven track record, we are confident in managing projects of any scale or complexity, delivering solutions that are efficient, cost-effective and built to endure.
Our credentials reflect a strong commitment to professional standards, compliance, and continuous improvement. We maintain active involvement with leading industry bodies and hold recognized certifications and registrations, including ISO Certifications and NSW regulatory registrations.
View our capability statement for a full overview of our services, credentials and project experience.
Client: Owners Corporation
The property in Pyrmont is a strata scheme of 120 mixed commercial and residential lots within a multi storey face brick building supported by...
Client: Owners Corporation
A multi storey residential complex in Arncliffe presented recurring water ingress and façade performance issues that were affecting amenity and creating compliance risk. MJ...
Client: Owners Corporation
Project Background MJ Engineering Projects was engaged as an expert witness to assist the Owners Corporation of a multi-building 355 lot residential complex in...
Key Concerns and Frequently Asked Questions About Remedial Building Services in Australia
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An inspection report documents a building’s condition for the owner. An expert witness report is prepared for legal proceedings under an expert code of conduct: the engineer’s duty is to the tribunal, the report must address the specific questions in dispute, and the author must be prepared to defend every finding under cross-examination.
Yes. We give oral evidence at NCAT and in court, take part in expert conclaves and prepare joint expert reports as directed by the tribunal. The engineer who inspected the building is the one who gives the evidence.
It depends on building size, defect count and how quickly access can be arranged. A single-dwelling report is typically faster than a multi-building strata engagement with diagnostic testing. Once we have scoped the matter, the fee proposal includes a delivery date.
Not necessarily, but move now. Claims for major defects under the Home Building Act 1989 (NSW) must be brought within six years of completion, and other defects within two. If the deadline is close, tell your lawyer and us immediately; an inspection can usually be prioritised so the evidence is documented before time runs out.
Both. A significant share of our expert witness services work is for respondents who need an honest assessment of which claimed defects are genuine, which are maintenance issues and what rectification should reasonably cost. Independence cuts both ways, and tribunals know it.
We prepare expert witness reports across Greater Sydney from our Artarmon office, and take engagements in Newcastle, the Central Coast, Wollongong and Canberra. For matters further afield, call 1800 953 935, and we will confirm availability.
Get in touch with MJ Engineering Projects on 1800 953 935, email info@mjengineeringprojects.com.au, or visit Suite 3, 401 Pacific Highway, Artarmon NSW 2064.
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