Understand provisional sums, prime costs, and price adjustments before you sign your building contract.

You can be confident that you are getting the right legal advice.

Price allowances and adjustments in building contracts can significantly impact your final construction costs. Learn how provisional sums, prime costs, and escalation clauses work, what to negotiate, and how to protect yourself from unexpected expenses in your building project.

Dispute resolution mechanisms provide a structured process for parties to resolve disagreements that arise during the course of the building contract. These mechanisms are critical for allowance and pricing disputes because they:

Provide a clear pathway for resolving disagreements without immediately resorting to expensive litigation; establish timeframes for raising and responding to disputes; set out what evidence or documentation must be provided; specify whether disputes must go through negotiation or mediation before formal proceedings; and help parties reach resolution in a timely and cost-effective manner.

Well-drafted dispute resolution clauses should specify the steps parties must follow, the timeframes for each step, whether parties must attend mediation before litigation, and what happens if one party doesn't comply with the dispute resolution process. Without these mechanisms clearly set out, disputes can quickly escalate to costly tribunal or court proceedings.

Disputes over price allowances and adjustments typically arise from several common issues:

Insufficient or unrealistic allowances: The builder claims actual costs exceed allowances, but homeowner believes allowances should have been realistic from the start. Disputes often centre on whether the original allowance was genuine or deliberately understated.

Vague allowance descriptions: Disagreements about what quality or standard was included in the allowance amount. For example, disputes over whether 'suitable tiles' means budget range or mid-range quality.

Disputed price adjustment claims: Builder invokes escalation clause for cost increases, but homeowner questions whether the increase is justified or properly calculated according to the contract terms.

Lack of documentation: Builder cannot provide adequate proof of actual costs or price increases, but still demands payment above allowances.

These disputes frequently arise when builders include artificially low allowances to secure contracts, then claim legitimate cost increases during construction without adequate documentation.

Changes to scope disguised as allowances: Work that should be a variation (requiring homeowner approval) is instead claimed as an allowance or adjustment.

Timing disputes: Disagreements about when the builder must notify the homeowner of costs exceeding allowances or price adjustments being applied.

Quality disputes: Homeowner believes the quality delivered doesn't match the allowance amount, or builder claims homeowner selections exceed reasonable allowance expectations. This can also lead to project delays.

When a dispute arises over price allowances or adjustments, homeowners should take these immediate steps:

1. Review your contract: Carefully review the specific allowance or price adjustment clause in dispute. Understand exactly what the contract says about the allowance amount, what's included, how adjustments are calculated, and what notification or documentation is required.

2. Request detailed documentation: If the builder claims costs exceed an allowance or triggers a price adjustment, request itemised documentation including supplier quotes, invoices, and detailed cost breakdowns including: quotes or invoices from suppliers, evidence of price increases if claiming escalation, detailed breakdown of actual costs versus allowance amount, and explanation of why the allowance was insufficient.

3. Respond in writing: Put your position in writing, clearly explaining why you dispute the claim. Reference specific contract clauses and attach supporting evidence. Keep copies of all written communication.

4. Follow contract dispute process: Follow the dispute resolution mechanism set out in your contract. This typically involves: raising the dispute in writing within specified timeframes, attending negotiation or mediation if required, engaging in good faith discussions to resolve the matter, and documenting outcomes of discussions.

5. Obtain independent evidence: Consider obtaining independent quotes or expert opinions to support your position. For example, get quotes from other suppliers to demonstrate that the builder's claimed costs are excessive, or engage a quantity surveyor to assess whether allowances were realistic.

6. Do not simply refuse to pay: While you should dispute unfair claims, completely refusing to pay any amount can put you in breach of contract. Consider whether part of the claim is valid and whether paying undisputed amounts while disputing the excess is appropriate. Seek legal advice before withholding payments.

The key is to act quickly, document everything, and follow the contract's dispute resolution process. Delays in raising disputes can weaken your position.

You should seek legal advice from a construction lawyer when:

The amount in dispute is substantial (generally over $5,000 - $10,000); the builder refuses to provide adequate documentation for cost claims; you've followed the contract dispute process but reached deadlock; the builder threatens to suspend work or terminate the contract over the payment dispute; you receive a payment claim under the Security of Payment Act; the builder commences formal proceedings (NCAT, VCAT, QCAT, or court action); your contract's dispute resolution clause is unclear or ambiguous; or you're uncertain about your legal rights and obligations.

A construction lawyer can provide guidance on your rights under the contract and relevant building legislation, review the builder's cost claims and supporting documentation, advise whether the allowances were realistic and whether price adjustment clauses have been properly applied, represent you in negotiations or mediation, and if necessary, represent you in tribunal or court proceedings to achieve a fair resolution.

Early legal advice often prevents disputes from escalating to expensive litigation. A lawyer's letter clearly explaining your legal position and the weaknesses in the builder's claim can often prompt a more reasonable settlement approach. The cost of legal advice at the dispute stage is typically far less than the cost of letting an unfair claim go unchallenged or proceeding to tribunal without proper preparation.