Victoria Foundation Data: Reconcile the Site Report Before Accepting the Price

MATCH THE SITE DATA TO THE PRICEVictoria footing assumptions before contract

Compare evidence before comparing the headline price

Two building quotes can look comparable while assuming very different ground conditions. One builder may have reviewed a site-specific report and included the designed footing solution; another may be pricing a generic starting allowance. Before selecting the lower number, ask which investigation and drawing revisions support each price. Put the document references beside the quoted inclusions. This is a procurement check, not an invitation for a student to interpret a soil classification or decide how deep a footing should be. The engineers do that work; the buyer makes sure it reaches the pricing team.

Understand why the foundation data comes first

Consumer Affairs Victoria’s foundation guidance says the builder must obtain foundation data before the building contract is signed. It describes soil-test-based information that informs the footing solution and price. Request the actual report reference, investigation date and site identity. Ask the builder to confirm which version was used. A verbal assurance that the estate has familiar soil is not the same as a documented connection between this block, its investigation and the proposed building.

Give every tenderer the same technical starting point

Commission the geotechnical and structural professionals to identify the information needed for the intended footprint, rather than choosing a cheap investigation scope yourself. Provide the agreed reports, drawings and specifications to each tenderer together. Record any question about coverage, changed levels, fill, retained structures or access for further investigation. If an earlier report accompanied the sale, ask the engineer whether it is suitable for the present proposal and intended reliance. Do not assume a report for a different footprint or earlier design automatically answers the current pricing question.

Read exclusions against the actual investigation

Make a short schedule with columns for the quoted footing scope, the supporting report or drawing, the exclusion and the person resolving it. Where excavation or ground-related items remain provisional, ask what information will allow a firmer price and when it can be obtained. Consumer Affairs Victoria says foundation data is critical to an accurate contract price. This does not mean every unexpected condition has already been ruled out. It means the team should distinguish an identified uncertainty from an avoidable gap in obtaining and using the available evidence.

Do not approve a rock claim from an invoice alone

The CAV guidance on changing a domestic building contract price identifies extra foundation costs that should have been anticipated from the data as an important limitation. If an extra charge arrives, preserve the original reports, tender correspondence, excavation evidence and proposed variation. Ask the engineer what the evidence shows and the building lawyer how the contract and current law apply. Neither an automatic refusal nor an automatic payment is a sound substitute for that review.

Test a realistic tender comparison

Imagine one quote includes an engineered footing schedule while a cheaper quote excludes rock excavation without identifying which report it reviewed. Ask the second tenderer to reconcile the same technical documents before treating the difference as a saving. If investigation remains incomplete, show that uncertainty separately in the budget and acquisition decision. Do not invent a standard rock-removal allowance or assume a neighbouring build predicts this one. The useful comparison is the total scope and uncertainty each contractor is accepting for the proposed site and design.

Carry the evidence into construction

Keep the signed contract’s technical attachments and the final pricing schedule together. Ask the engineer and builder how excavated conditions will be checked before concrete is placed, including who is notified when actual conditions differ. CAV explains that the builder must check the report’s samples against the excavated foundations. A report filed at tender stage is therefore not the end of the evidence trail. Changes in design, levels or discovered conditions should reach the technical team and be resolved through the proper project process.

TPC deal lens: make the saving traceable

You are not expected to solve foundation engineering yourself. Ask the geotechnical engineer, structural engineer and building lawyer the questions their roles can answer. Before accepting the contract price, save a one-page reconciliation linking site, reports, design, inclusions and unresolved items. Key takeaway: a meaningful footing price needs a documented technical basis, not just a reassuring allowance. Your turn: can you identify the exact report and design revision behind the price you are about to accept?

Your decision checklist

1. Match the foundation report to the actual parcel and proposal.
2. Confirm the engineer’s current design revision.
3. Give every tenderer the same technical documents.
4. Reconcile exclusions and provisional items in writing.
5. Refer an extra excavation claim to the engineer and building lawyer.

Image credit: Sasun Bughdaryan / Unsplash. Illustrative photograph. Source · Licence Cropped and resized from the original; no content retouching.

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