What Is a QS Report? Types, Cost and What's Inside One (NZ Guide 2026)
Updated: Aug 12
A lender will not release construction-loan money without one. An insurer wants one before settling a major claim. A lawyer wants one before filing. "Get a QS report" is standard advice in New Zealand construction — but the term covers at least six different documents, priced anywhere from a few hundred dollars to five figures. Here is what a QS report actually is, which type you need, what a good one contains, and what it costs.
By Steve Parker · Trueworks · NZ construction estimation · 9 min
What you'll learn in this post
What a QS report is in construction — and the six distinct types used in NZ, from bank drawdown reports to dispute quantum.
Who is allowed to prepare one — when NZIQS registration is effectively mandatory, and when independent QS-grade analysis does the same job.
Realistic NZ cost ranges and how to brief one — so you order the right report once, instead of the wrong one twice.
Quick answer: A QS report is a written, itemised assessment of construction cost, prepared by a quantity surveyor or a cost analyst working to the same discipline. Unlike a builder's quote — which is a price someone hopes to win work at — a quantity surveyor report is independent: it measures the drawings, prices the work against known rates, states its assumptions and exclusions, and gives a third party (a bank, an insurer, a tribunal, or you) a number they can rely on. In NZ the common types are bank and lender reports, feasibility estimates and elemental cost plans, schedules of quantities, variation and claim assessments, insurance reinstatement valuations, and quantum reports for disputes. As a broad guide, prices run from a few hundred dollars for a single drawdown inspection to five figures for a full schedule of quantities on a large project.
What is a QS report in construction?
Strip the jargon away and a QS report answers one question with evidence: what should this construction work cost?
The evidence part is what separates it from every other number floating around a project. A builder's quote is a commercial offer. A "ballpark" from a mate in the trade is an opinion. A QS report is a measured, documented position: it lists the drawings and specifications it relied on (down to revision numbers), sets out quantities and rates, states what is included and what is excluded, and is signed by the person who takes responsibility for it.
That structure exists because QS reports are usually written for someone other than the person who commissioned them. A bank relies on one before advancing funds. An adjudicator under the Construction Contracts Act 2002 reads one when deciding a payment dispute. An insurer sets your premium off one. The report has to stand on its own, in front of a stranger, without the author in the room. That is the standard any QS report — from any provider — should be held to.
The six types of QS reports you'll see in NZ
People search for "qs report" meaning six quite different documents. Before you commission anything, work out which of these you actually need.
Bank and lender reports (initial report plus drawdown reports). Before approving a construction loan, most NZ lenders want an initial QS report confirming the building contract is adequate to complete the project, the contingency is sensible, and the payment structure matches the build programme. During construction, drawdown (progress) reports verify that the work claimed has actually been done before each instalment is released. This is the most commonly requested QS report for residential builds — we cover it in detail in our guide to QS reports for bank construction loans.
Feasibility estimates and elemental cost plans. Early-stage reports that cost a concept before detailed design exists. A feasibility-stage QS cost estimate is typically broken down by building element — substructure, frame, roof, services, finishes — so the design team can see where the money sits and value-engineer before consent documentation is drawn.
Schedules of quantities. A full measurement of the drawings into an itemised list of quantities that tenderers price against. This is the most labour-intensive QS document, and it is the backbone of comparable tendering — every builder prices the same measured scope, so the prices can actually be compared.
Variation and claim assessments. An independent valuation of variation work or a payment claim: measured quantities, market or contract rates, margins, and time-related costs, assessed against the contract mechanism — under NZS 3910:2023 that means the variation valuation provisions, and under the Construction Contracts Act 2002 it feeds directly into payment schedules and adjudication.
Reinstatement valuations for insurance. An estimate of the full cost to rebuild a property, used to set the sum insured. Since most NZ house policies moved to sum-insured cover, an evidence-based rebuild figure matters — the default online calculators are generic, and under-insurance is discovered at the worst possible moment.
Quantum reports for disputes. A costed assessment of defective work, incomplete work, or contested variations, prepared for adjudication, arbitration, or court. The quantum report puts dollar figures on the technical findings, and it lives or dies on the transparency of its measurement and rates.
Who prepares QS reports — and when NZIQS registration is mandatory
Here is the part most guides skip: "quantity surveyor" is not a statutorily protected title in New Zealand. There is no licensing regime for quantity surveyors equivalent to the Licensed Building Practitioner scheme under the Building Act 2004. Anyone can call themselves a QS; what varies is credential and competence.
The professional benchmark is the New Zealand Institute of Quantity Surveyors (NZIQS). Membership grades signal assessed experience, and at the senior end NZIQS administers the Registered Quantity Surveyor credential. So when does the credential actually matter?
Effectively mandatory: bank and lender reports. Lenders typically specify that construction-loan reports come from an NZIQS-affiliated or Registered Quantity Surveyor. That requirement sits in the lender's conditions — if your bank's letter names the credential, only a report from someone holding it will satisfy the condition.
Strongly preferred: dispute quantum at the formal end. In arbitration or court, an expert's standing is tested. A registered QS with relevant experience carries weight, and expert witnesses are expected to comply with the applicable code of conduct for expert evidence.
Not required: most everyday cost analysis. Checking whether a quote is priced fairly, valuing a variation, sanity-checking a tender, building a schedule of quantities for your own pricing — none of this legally requires registration. What matters is whether the measurement is right, the rates are sourced, and the reasoning would survive scrutiny.
Where Trueworks sits in this: Trueworks does independent, QS-grade document analysis — measurement, rates, contract mechanism, reasoning — but is not a registered QS practice. For the large middle of the market (quote checks, variation assessments, tender comparisons, takeoffs), that is exactly what the job needs, at a price a working contractor can use. Where a mandate names the registration — bank reports are the clear case — Trueworks prepares the measurement and analysis pack so the registered QS review at the end is faster and cheaper, and we say so up front rather than dressing analysis up as something it is not.
What a good QS report contains
Whatever the type, the anatomy of a defensible quantity surveyor report is consistent. Before you rely on one — or pay for one — check it has:
A document register. Every drawing, specification, and contract document relied on, with revision numbers and dates. If the report does not say what it measured from, you cannot tell what it covers.
The basis of measurement and pricing. How quantities were taken off, and where the rates came from — published cost data, supplier pricing, contract rates, or the author's records.
Itemised quantities and rates. Enough breakdown that a competent third party could re-check any line. Lump sums with no workings are a red flag in any QS document.
Stated assumptions and exclusions. The exclusions list is where projects get hurt. Anything excluded from the report can surface later as a variation, so this section deserves more attention than the total.
Contingency, and the reasoning behind it. A percentage plucked from the air is not analysis. The report should say what risks the contingency is carrying.
GST treatment, date, and validity. Construction pricing moves. A report should state whether figures are GST-exclusive and how long the pricing basis holds.
Author, credentials, and signature. Who takes responsibility, and what standing they have to do so.
If a report you have been handed is missing several of these, that tells you something about the number on the front page.
What does a QS report cost in NZ?
Prices vary with project scale, documentation quality, and who is preparing the report. As a broad guide for 2026, excluding GST:
Initial bank / lender report: commonly in the range of $1,500–$4,000 for a standard residential build; more for complex or multi-unit projects.
Drawdown / progress reports: commonly $400–$800 per inspection, with a typical build needing somewhere between four and eight of them over the construction period.
Feasibility estimate or elemental cost plan: commonly $2,000–$6,000 for residential work; commercial projects scale with size and complexity.
Schedule of quantities: from roughly $3,500 for a straightforward house upward — this is measured work, so the price tracks the size of the documentation set.
Variation or claim assessment: often charged hourly, commonly $140–$250 per hour; a contained single-variation review may be a few hundred dollars, a multi-claim assessment considerably more.
Insurance reinstatement valuation: commonly $600–$1,500 for a standard home.
Dispute quantum report: hourly at senior rates; even a contained adjudication-support report usually starts in the low thousands.
Treat these as orientation, not quotes — a firm price only means something once the provider has seen your documents. For a fuller breakdown of QS pricing structures, see our guide to quantity surveyor costs in NZ. And note the scale point: a targeted document-analysis check on a single quote or variation costs a fraction of a full QS engagement, because the measurement scope is a fraction of the size.
How to brief a QS report so you pay once
Most wasted QS spend comes from a vague brief. Six things to nail down before anyone starts:
State the purpose and the audience. "For my bank's loan conditions", "for an adjudication under the CCA", "to check my builder's variation" — each produces a different document. Say who will read it.
Name any required credential up front. If your lender's letter requires an NZIQS-registered QS, put that in the first email. It determines who can sign the report.
Supply the full document set. Current drawings with revision numbers, specifications, the contract, and the quote, claim, or tender being assessed. Gaps in the documents become assumptions in the report.
Agree the format and depth. A two-page opinion and a fifty-page measured assessment are both legitimate QS reports at very different prices. Match the depth to what the audience needs.
Ask for the exclusions list explicitly. Tell the author you want assumptions and exclusions stated in full. A good QS will do this anyway; asking makes sure of it.
Fix the deadline. Measurement work takes real time. At Trueworks, document checks come back within 24 hours; full takeoff and estimation packets run to about 5 business days. Whoever you use, get the date in writing.
FAQ — QS reports
What is a QS report? A QS report is a written, itemised assessment of construction cost prepared by a quantity surveyor or an analyst working to the same discipline. It documents what was measured, what rates were applied, and what was assumed or excluded, so that a third party — a bank, insurer, tribunal, or client — can rely on the figure.
What is a QS report in construction lending? For construction loans, lenders usually require two things: an initial report confirming the building contract and contingency are adequate to complete the project, and drawdown reports during the build verifying claimed work is complete before each payment is released. Lenders typically require these from an NZIQS-affiliated or Registered Quantity Surveyor.
How much does a QS report cost in NZ? As a broad guide: initial bank reports commonly $1,500–$4,000; drawdown reports $400–$800 each; elemental cost plans $2,000–$6,000; schedules of quantities from roughly $3,500 upward; variation assessments often hourly at $140–$250. All excluding GST, and all dependent on documentation quality and project scale.
Does a QS report have to be prepared by a registered quantity surveyor? Only when the party relying on it says so — most commonly a bank's loan conditions naming an NZIQS-registered QS. For quote checks, variation valuations, tender comparisons, and general cost analysis there is no statutory requirement; what matters is the quality of the measurement and reasoning.
What is the difference between a QS cost estimate and a builder's quote? A builder's quote is a commercial offer to do the work at a price, shaped by workload, risk appetite, and margin. A QS cost estimate is an independent assessment of what the work should cost, built from measured quantities and sourced rates, with no stake in winning the job. When the two disagree materially, the gap itself is the useful information — it tells you where to ask questions.
Got a quote, tender or variation on your desk? Get it checked — written, code-cited, back within 24 hours. First check free. Send us the drawings and the quote, tender or variation. You get a written, code-cited check back within 24 hours. No charge for your first check. No card, no obligation. NDA available. → Get the free check at trueworks.co.nz/contact — or email hello@trueworks.co.nz
About Trueworks
Trueworks is built by Steve Parker — 20 years on the analytical side of NZ construction. Variation reviews, contract advisory, programme review, and document-heavy estimation work. Trueworks is the productisation of that practice for NZ trades and builders: the same defensible analysis, at a price and pace a working contractor can actually use.
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hello@trueworks.co.nz · trueworks.co.nz
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