Yes, a quantity surveyor (QS) can absolutely help you if your builder has abandoned your project. In fact, engaging a QS is often one of the smartest first moves you can make in this stressful situation. They can assess exactly where the project stands financially, what work has been completed, what it will cost to finish, and what losses you may be able to claim.
What Does "Builder Abandonment" Mean in NZ?
In New Zealand, a builder is generally considered to have abandoned a project when they stop work without a valid reason and show no intention of returning. This can happen for many reasons — financial trouble, disputes, or simply poor business practice. Whatever the cause, you're left with an unfinished home, money already paid out, and no clear path forward.
Under the MBIE Building Performance framework and standard NZ building contracts, abandonment is typically treated as a serious breach of contract. Knowing your legal position matters, and a QS can provide the financial evidence you need to support any action you take.
How a Quantity Surveyor Can Help
A QS brings specialist skills in construction cost management and contract administration. Here's what they can do for you in an abandonment situation:
1. Assess the Value of Work Completed
A QS will carry out a progress assessment — a detailed inspection and valuation of all work done to date. This tells you exactly what you've received for the money you've paid, and whether you've been overcharged relative to the stage of completion.
2. Estimate the Cost to Complete
They'll prepare a cost-to-complete report, estimating what a new builder will need to charge to finish the project. This figure is critical for budgeting, finding a replacement contractor, and quantifying your losses.
3. Identify Defects and Remedial Work
Abandoned projects often have incomplete or substandard work. A QS can document these issues and estimate the cost of rectification, which may form part of a claim against your original builder.
4. Support Insurance Claims
If you have contract works insurance or a homeowner's warranty, your insurer will likely require a professional assessment of losses. A QS can prepare the documentation your insurer needs. Always check your policy wording carefully and contact your insurer early.
5. Assist with Legal and Dispute Resolution
If you pursue the builder through the Disputes Tribunal, a civil court, or via adjudication under the Construction Contracts Act 2002, a QS can provide expert evidence and prepare a quantum report — a formal document setting out the financial value of your claim.
6. Help You Re-tender the Project
A QS can prepare updated bills of quantities or scope-of-work documents so you can get accurate, comparable quotes from new builders. This protects you from being overcharged by contractors who know you're in a vulnerable position.
What to Do First
If your builder has walked off the job, take these steps as soon as possible:
- Document everything — photograph all work completed (and any defects), and gather all contracts, invoices, and correspondence.
- Check your contract — look for clauses about abandonment, termination, and dispute resolution. Many NZ residential builds use the New Zealand Certified Builders or Master Builders standard contracts.
- Contact your insurer — notify them promptly; delays can affect your claim.
- Check the builder's licence — verify their status with Licensed Building Practitioners. If they held an LBP licence, you may have additional avenues for complaint.
- Engage a QS — get a professional financial assessment before you commit to any further spending.
Understanding Your Financial Exposure
A useful way to think about your position:
| Item | Why It Matters |
|---|---|
| Amount paid to date | Establishes what you've already spent |
| Value of work completed | Shows if you've been overcharged |
| Cost to complete | Sets your new budget |
| Defect rectification costs | Adds to your total loss |
| Difference (your loss) | Forms the basis of any claim |
A QS can put accurate numbers against each of these items.
Building Consent and Compliance Considerations
An abandoned project may also have building consent implications. If work has stopped mid-build, your consent may lapse or inspections may be overdue. Contact your local council to understand where things stand. MBIE Building Performance has guidance on building consents and what happens when projects stall. A new builder will need to take over the consent, and a QS can help coordinate the documentation needed for this process.
Also be aware that any restricted building work (structural, weathertight envelope, and certain other work) must be carried out or supervised by a Licensed Building Practitioner under the Building Act 2004. Check that the work completed so far meets this requirement — if it doesn't, it may affect your ability to get a code compliance certificate.
When to Call a Professional
You should engage a quantity surveyor as soon as you suspect your builder has abandoned the project — don't wait. The sooner you have a professional assessment, the stronger your position will be for insurance claims, legal action, or finding a new contractor. Look for a QS who is a member of the New Zealand Institute of Quantity Surveyors (NZIQS) to ensure they meet professional standards. You can find qualified quantity surveyors and other building professionals on tradedirectory.co.nz.
For broader guidance on your rights as a homeowner, Consumer NZ and BRANZ are also useful resources.


Site Safe
Licensed Building Practitioner (LBP)
NZ Institute of Building (NZIOB)
