Anonymised QRBS case study • Queensland

When an engineering inspection does not deliver the Form 12 required for final certification.

A property owner needed structural evidence for an existing secondary dwelling. The owner arranged an engineer directly, but the engagement produced an inspection and a substantially expanded proposal—not the Form 12 the owner believed had been commissioned.

$1,100 initial inspectionNo Form 12 deliveredMore than $7,500 potential total cost

The actual requirement

The owner did not merely need general advice about whether the framing appeared sound.

The building application required documented structural evidence addressing nominated as-constructed elements of the secondary dwelling. The intended deliverable was an engineering assessment supported by the engineer's RPEQ registration and, if the engineer was professionally satisfied, a completed Form 12 for submission to the private certifier.

Form 12 is Queensland's Aspect Inspection Certificate (Appointed Competent Person). The private certifier would then decide whether the engineering evidence was sufficient for the relevant aspect of the approval and final-certification pathway.

What the property owner experienced

A paid inspection was completed, but the expected certification deliverable did not follow.

The owner engaged an engineer for $1,100 and reported that the site inspection lasted approximately 15 minutes. During the inspection, the owner was told that most of the framing appeared satisfactory, although several building elements required remediation.

The engineer reserved the certificate and proposed a substantially expanded scope involving drafting, structural calculations, a new design and a geotechnical site-classification report. The additional engineering work was quoted at more than $6,500 beyond the original inspection fee, bringing the potential engineering cost to more than $7,500.

Define the assignment before comparing prices

A request for “a structural inspection” leaves important questions unanswered.

Building elements

Which as-constructed structural elements must be inspected and assessed?

Available evidence

Which plans, photographs, records and approval documents can support the engineer?

Required deliverable

Is the intended outcome a report, design, calculation package or Form 12 aspect certificate?

Rectification

Can limited remediation be identified, completed and reinspected within the agreed service?

Exclusions

Which investigations, tests, opening-up works or consultant reports are not included?

Variations

What circumstances may change the scope, fee or expected deliverable?

The problem was not simply the price

The owner and engineer did not begin with the same written understanding of the task.

An engineer must exercise independent professional judgement. If calculations, design work, testing, exposure of concealed elements or geotechnical information are genuinely required, QRBS cannot direct the engineer to ignore those matters or issue a certificate.

The service gap arose because the engagement did not clearly define the structural elements, available evidence, exclusions, variation triggers and intended Form 12 deliverable before the inspection was commissioned.

Different professional roles

QRBS coordinates the pathway but does not perform or direct the engineering.

The RPEQ engineer is responsible for the inspection, technical assessment, professional conclusions and any Form 12 they sign. The private certifier remains the building assessment authority and decides whether the submitted evidence is acceptable.

QRBS acts for the property owner by defining the evidence pathway, preparing consultant scopes, coordinating tenders and managing information between the owner, consultants and private certifier. The property owner remains free to select the consultant.

Comparing the engagements

The real comparison is a defined deliverable against an open-ended engagement.

In QRBS's experience, engineering quotations for comparable, clearly scoped structural inspection and Form 12 assignments have commonly been approximately $1,200. This is indicative only: every building, level of access, available evidence and engineering risk is different.

A clear scope manages risk; it does not remove it

Concealed damage, inadequate construction, missing evidence or legitimate engineering concerns may still require additional work. A defined tender gives the owner a clearer basis for comparing consultants, understanding exclusions and controlling variations before costs escalate.

The practical lesson

Do not appoint a consultant based only on a price for “an inspection.”

First establish what must be assessed, what evidence the private certifier requested, what certificate or report is expected, what the consultant's fee includes and what may trigger further investigation or cost.

QRBS can prepare the scope, obtain comparable third-party consultant tenders and coordinate the selected consultant's work as part of an as-constructed building approval or final-certification pathway.

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Every building and consultant assignment is different. Indicative figures are not quotations or guarantees. Engineers and other consultants exercise independent professional judgement, and the relevant private certifier determines whether submitted evidence is acceptable for the building certification process.