Why Your Quantity Surveyor Should Be a Member of the AIQS and Hold a CQS Credential
When engaging a quantity surveyor for a construction cost estimate, DA cost report, or any other QS service, most people focus on price and turnaround time. Both matter, but there is a third factor that deserves equal attention: credentials.
Not everyone who calls themselves a quantity surveyor holds a recognised professional qualification. In NSW, the term "quantity surveyor" is not a protected title in the same way that "architect" or "engineer" is. This means that, in theory, anyone can hold themselves out as a quantity surveyor without belonging to any professional body or meeting any minimum standard of education or experience.
For most QS services, this creates no immediate problem. But for specific services where the credential of the preparer is legally required, or where a lender, council, or court relies on the report, it matters considerably.
What Is the AIQS?
The Australian Institute of Quantity Surveyors (AIQS) is the peak professional body for quantity surveyors in Australia. Founded in 1971, it sets educational standards, practice guidelines, ethical requirements, and continuing professional development obligations for its members.
AIQS membership is the baseline standard of professional recognition for quantity surveyors in Australia. Members are required to hold a recognised tertiary qualification in quantity surveying or a related discipline, to meet experience requirements, to comply with the AIQS Code of Ethics, and to maintain their professional development on an ongoing basis.
For clients engaging a QS, AIQS membership provides a minimum assurance that the practitioner has met a recognised standard of qualification and is subject to professional oversight. A QS who is not a member of the AIQS has not had their qualifications or experience independently verified by any professional body.
What Is the AIQS Quantity Surveyor CQS Designation?
The Certified Quantity Surveyor (CQS) designation is a formal certification issued by the AIQS to members who have demonstrated competency across the core areas of quantity surveying practice. It is not automatically granted with membership. It requires an application, a demonstration of competency, and an assessment against the AIQS competency framework.
The CQS designation is the AIQS's formal certification that a practitioner is competent to practise as a quantity surveyor across the full range of QS services. For clients, it provides a higher level of assurance than membership alone: not just that the QS has the right qualifications, but that their competency has been independently assessed.
For many council DA cost reports and for statutory valuations and assessments under NSW planning legislation, the AIQS CQS credential is the recognised standard against which a QS's qualifications are assessed when their report is reviewed.
What Is the FAIQS Designation?
Above the CQS sits the FAIQS designation, which stands for Fellow of the Australian Institute of Quantity Surveyors. Fellowship is the highest level of professional recognition the AIQS confers and is awarded to practitioners who have made a demonstrated contribution to the profession beyond competent practice, through leadership, mentoring, published work, or sustained excellence over an extended career.
FAIQS is held by a relatively small number of practitioners nationally. It is not simply a tenure-based award. It requires a substantive application and peer assessment. For clients, engaging a FAIQS CQS means engaging a practitioner whose qualifications, competency, and professional contribution have all been independently assessed and recognised at the highest level the Australian profession offers.
When Are AIQS Credentials Legally Required?
There are specific circumstances in NSW where the credentials of the quantity surveyor preparing a report are not just desirable but required.
Under the NSW Environmental Planning and Assessment Act and associated regulations, construction cost reports prepared for development applications above a threshold value must be prepared by a suitably qualified person. For projects where the estimated development cost exceeds $3 million, the report must be prepared by a quantity surveyor who is a member of the AIQS or the Royal Institution of Chartered Surveyors (RICS).
This means a cost report prepared by someone who is not an AIQS or RICS member for a project over $3 million does not meet the legislative requirement and will not be accepted by council. Even for projects below the $3 million threshold, many Sydney metropolitan councils expect an AIQS-credentialled QS regardless, and will query reports prepared by unqualified persons.
Beyond the DA context, bank finance QS reports prepared for progress payment assessments on construction loans are typically required by lenders to be prepared by an AIQS member. Insurance replacement cost assessments used by insurers for sum-insured purposes carry more weight when prepared by a credentialled QS. In any context where the report may be scrutinised by a third party, the credentials of the preparer are part of what gives the report credibility.
Why It Matters for Residential Projects
For most homeowners, the QS they engage is working on projects well below the $3 million legislative threshold. The credential requirement is not always legally mandated. But that doesn't mean credentials are irrelevant.
A concept estimate or DA cost report prepared by a FAIQS CQS draws on a depth of experience, a body of benchmarked cost data, and a framework of professional practice that a non-credentialled estimator cannot replicate. The difference is most visible in the quality of the assumptions made, the clarity with which uncertainty is communicated, and the reliability of the figure as a basis for financial decisions.
For a homeowner deciding whether to proceed with a $1.2 million renovation or a knockdown rebuild, or for an architect advising a client on whether their design is achievable within budget, the credibility of the cost figure matters. An estimate that understates the likely cost because it was prepared without adequate experience or market knowledge is worse than no estimate at all, because it creates false confidence.
What to Ask Before Engaging a QS
Before engaging a quantity surveyor for any service, it is worth asking:
Are you a current member of the AIQS?
Do you hold the CQS designation?
Are you a Fellow of the AIQS (FAIQS)?
How many years of experience do you have in residential and small commercial estimating specifically?
Can you confirm your reports meet NSW council requirements for DA submissions?
A QS who holds FAIQS CQS credentials and can answer these questions clearly is a QS whose qualifications have been independently verified at the highest level the Australian profession offers. That is the standard CPP Quantity Surveyors holds itself to on every report and estimate it prepares.
Work With a Credentialled QS
CPP Quantity Surveyors is led by Gary Uys FAIQS CQS, with over 30 years of experience across residential and small commercial projects in Sydney and Regional NSW. All reports and estimates are prepared personally by Gary, not delegated to junior staff, which means the credentials on the report reflect the person who actually did the work.
If you are planning a project and want to ensure your QS report is prepared to the standard required by NSW councils, lenders, and insurers, contact us to discuss your project or request a fee proposal.
By Gary Uys, FAIQS CQS, Director - CPP Quantity Surveyors
📞 (02) 9629 3495
