How Do Quantity Surveyors Handle Confidential Project Information in NZ?

When you engage a quantity surveyor (QS) in New Zealand, you're sharing sensitive financial and design information — from your budget to your builder's tender prices. The good news is that QS professionals operate under a robust framework of ethical obligations, contractual duties, and legal requirements that protect your confidential project information at every stage.

What Counts as Confidential Project Information?

Confidential information in a QS context covers a wide range of material, including:

• Project budgets and cost plans — your overall spend and contingency allowances
• Tender documents and pricing — what individual contractors have quoted
• Design drawings and specifications — shared by architects or designers
• Contract sums and variations — the agreed and adjusted prices during construction
• Client identity and project details — who you are and what you're building
• Commercially sensitive supplier rates — unit rates used in bills of quantities

Any information you share with your QS that is not publicly available is generally treated as confidential by default.

Professional and Ethical Obligations

Most practising quantity surveyors in New Zealand are members of the New Zealand Institute of Quantity Surveyors (NZIQS) or hold membership with the Royal Institution of Chartered Surveyors (RICS). Both organisations have formal codes of conduct that require members to:

• Act with integrity and avoid conflicts of interest
• Keep client information confidential unless authorised to disclose it
• Not use confidential information for personal gain or to benefit a third party
• Disclose any situation where confidentiality may be compromised

Breaching these codes can result in disciplinary action, suspension, or removal from the professional register — a serious consequence that gives these obligations real teeth.

Contractual Protections

Beyond professional ethics, confidentiality is typically embedded in the written engagement agreement between you and your QS. A well-drafted QS contract will include:

• A confidentiality clause specifying what information is protected and for how long
• Obligations on the QS not to share your information with third parties without consent
• Provisions covering what happens to your documents and data when the engagement ends
• Clarity on who owns the intellectual property in cost plans and reports

If you are engaging a QS for a significant project, always ask to review the engagement letter or contract carefully before signing. If a confidentiality clause is not included, you can request one be added.

New Zealand Privacy Law

The Privacy Act 2020 applies to personal information held by QS firms. This means your QS must:

• Collect only the personal information they genuinely need
• Keep it secure against unauthorised access or disclosure
• Allow you to access and correct your own information
• Not disclose it to overseas parties without your consent (with some exceptions)

For most residential projects, the Privacy Act reinforces the protections already provided by professional ethics and contract, adding a statutory layer of accountability.

Tender Confidentiality — A Special Case

One of the most sensitive areas is competitive tendering. When multiple contractors submit prices for your project, those tender figures are commercially sensitive. Your QS plays a key role here:

• Tender documents are typically issued only to pre-approved contractors
• Individual tender prices are not shared between competing tenderers
• The QS prepares a tender comparison report for your eyes only
• Unsuccessful tenderers are usually told only whether they were successful, not the winning price

This process protects fair competition and ensures contractors can tender honestly without fear their rates will be leaked to rivals.

Digital Security and Data Handling

Modern QS practice involves sharing large files — drawings, schedules, cost plans — often through cloud platforms. Reputable QS firms will use:

• Secure file-sharing platforms with access controls (not open email attachments for sensitive documents)
• Password protection on cost reports and tender documents
• Clear data retention and destruction policies when a project concludes
• Staff training on information security

It's reasonable to ask your QS how they store and share your project data, particularly if your project involves commercially sensitive or high-value information.

When Disclosure Is Permitted

There are limited circumstances where a QS may need to share your information:

• With your consent — for example, sharing cost data with your bank or insurer
• Legal obligation — if required by a court order or regulatory authority
• Within the project team — sharing relevant information with your architect or project manager, usually covered by your engagement agreement
• Dispute resolution — if a construction dispute goes to adjudication or arbitration

Your QS should always tell you if they are required to disclose information and, where possible, seek your consent first.

When to Call a Professional

If you have concerns about how your project information is being handled — for example, if you suspect a breach of confidentiality or a conflict of interest — you should:

1. Raise the issue directly with your QS in writing
2. Contact NZIQS or RICS to make a formal complaint if the matter is not resolved
3. Seek independent legal advice if you believe a contractual or Privacy Act breach has occurred

For any significant building or renovation project, engaging a qualified and professionally registered QS is strongly recommended. You can find experienced local quantity surveyors on tradedirectory.co.nz.

Sources & Further Reading

• MBIE Building Performance — NZ Building Code and construction guidance
• BRANZ — Building Research Association of New Zealand
• WorkSafe NZ — Health and safety on construction sites
• Licensed Building Practitioners — Finding licensed professionals
• Consumer NZ — Your rights when hiring tradespeople
• Standards NZ — New Zealand construction standards