Variation Order — Building Contract (Australia)

Create a legally compliant Australian Construction Contract covering progress claims and payment schedules under the Security of Payment Acts (NSW Building and Construction Industry Security of Payment Act 1999, VIC Building and Construction Industry Security of Payment Act 2002, QLD Building Industry Fairness (Security of Payment) Act 2017), practical completion, defect liability, liquidated damages, retention at 5%, builder's licence requirements (QBCC/VBA), public liability and construction all risks insurance, home warranty insurance, WHS obligations under the Work Health and Safety Act 2011, and dispute resolution including statutory adjudication. Suitable for residential new builds, renovations, extensions, and commercial construction projects across all Australian states and territories.

A statutory Payment Claim (progress claim) made under Australian Security of Payment legislation gives contractors, subcontractors, and suppliers an enforceable right to receive payment for construction work and related goods and services performed under a construction contract. This template generates a compliant payment claim document for use under any Australian Security of Payment Act — including the Building and Construction Industry Security of Payment Act 1999 (NSW), the Building and Construction Industry Security of Payment Act 2002 (VIC), and the Building Industry Fairness (Security of Payment) Act 2017 (QLD) — as well as the equivalent Acts in all other states and territories. The Security of Payment Acts were introduced across Australia to address the chronic problem of late payment and non-payment in the building and construction industry. Before their enactment, contractors and subcontractors who had performed work often had to pursue lengthy and expensive litigation to recover money owed. The Acts fundamentally changed the payment landscape by giving claimants a rapid, low-cost statutory right to adjudication — a pay-now-argue-later mechanism that forces prompt payment of disputed amounts. A valid payment claim must be served on the reference date (or as soon as practicable after it), must identify the construction work or related goods and services to which it relates, and must state the claimed amount. In several states, including NSW under section 13(7) of the Building and Construction Industry Security of Payment Act 1999, the payment claim must also include the endorsed statement that the document constitutes a payment claim under the Act. This template includes the required statutory endorsement. Once a valid payment claim is served, the respondent (the party who owes payment) must respond within the prescribed period — typically 10 business days in NSW and Victoria, and 15 business days in Queensland — with either full payment or a payment schedule specifying the scheduled amount and the reasons for any reduction. A respondent who fails to provide a payment schedule cannot later bring those reasons in adjudication proceedings and becomes liable for the full claimed amount as a debt, which can be enforced by summary judgment. The claimed amount should reflect the value of construction work performed and goods and services supplied during the claim period, as calculated by reference to the contract price, the schedule of rates, or a fair and reasonable valuation. The claim must separately identify the GST component, as all construction work performed by a GST-registered entity in Australia is a taxable supply subject to GST at 10%. The claimed amount should be net of any amounts previously paid or certified. This payment claim template is appropriate for head contractors claiming from principals, subcontractors claiming from head contractors, and suppliers of related goods and services claiming from any party to a construction contract. It covers all types of construction work within the meaning of the Security of Payment Acts, including building work, civil engineering work, and the supply of construction-related goods and services. The template provides fields for all key elements of a compliant payment claim: reference date; claim date; the identity of the claimant and respondent; a description of the construction contract; the claim period; a description of the construction work and related goods and services; the claimed amount (with GST shown separately); the payment due date; the claimant's bank account details; a list of attached supporting documents; and the mandatory statutory endorsement. Supporting documents attached to a payment claim may include invoices, site progress photographs, delivery dockets, subcontractor invoices, and work completion certificates.

A Certificate of Practical Completion is one of the most important documents in Australian construction law. Issued by the Superintendent (or an independent certifier) under AS 4000-1997 clause 42, or by the parties under HIA or Master Builders Association contracts, it formally records that the construction works have reached practical completion — the point at which the works are substantially complete and fit for their intended purpose, even though minor outstanding items or defects remain. The practical completion certificate triggers a cascade of legal and financial consequences that fundamentally alter the rights and obligations of both parties. It marks the commencement of the Defect Liability Period (typically 12 months for residential works and 6 to 12 months for commercial projects), during which the contractor is obliged to remedy notified defects at its own cost. It triggers the release of the first tranche of retention money — typically 50% of the total retention held — which must be paid to the contractor within the timeframe specified in the contract or the applicable Security of Payment Act. It causes liquidated damages for delay to stop accruing (unless practical completion was achieved after the date for practical completion, in which case the delay period for liquidated damages purposes is fixed by the certificate). And for residential building work, it marks the point after which home warranty insurance covers are restructured. The legal test for practical completion in Australia has been settled since Multiplex Constructions Pty Ltd v Abgarus Pty Ltd (1992) 33 NSWLR 504, in which the NSW Supreme Court held that practical completion is reached when the works are complete for all practical purposes — meaning they can be used by the owner for their intended purpose, with only minor outstanding items that do not affect safe use or beneficial occupation. Practical completion does not require absolute perfection, and a Superintendent is not entitled to withhold the certificate merely because minor defects exist that can be remedied during the Defect Liability Period. However, the line between 'minor' and 'major' outstanding items is often contentious. Australian courts have held that items which prevent the use of the building for its intended purpose (for example, incomplete fire protection systems, missing essential fixtures, or structural defects) cannot be characterised as minor items. Where the Superintendent unreasonably withholds a practical completion certificate, the contractor may be entitled to claim that practical completion occurred on a particular date regardless of the certificate, and to claim the retention and final payment accordingly. This template generates a comprehensive Certificate of Practical Completion for use under any Australian standard form construction contract, covering all key elements: the certificate date; the parties and Superintendent; the contract type (HIA, MBA, AS 4000-1997, or AS 4300-1995); the site address and contract sum; the original, revised, and actual dates for practical completion; a description of the works at practical completion; a schedule of outstanding minor items; the Defect Liability Period and its expiry date; the retention release schedule and final payment obligations; liquidated damages implications; and the execution blocks for the Superintendent, Principal, and Contractor.

A Construction Change Order is a formal written document that records and authorises a change to the agreed scope of works, contract price, and/or programme under a building contract in Australia. It is the most comprehensive form of variation document used in Australian construction projects — broader than a simple Variation Order in that it explicitly addresses not only price adjustment but also programme impact, Work Health and Safety obligations under the Work Health and Safety Regulation 2017, and the SWMS (Safe Work Method Statement) requirements for any high-risk construction work introduced by the change. Change Orders are essential tools of project administration on any construction project of significance. They provide a formal, auditable record of every agreed change to the contract, enabling both parties to track the cumulative impact of changes on the contract price and programme over the life of the project. Without a documented Change Order, disputes about the scope, price, and timing of changes are almost inevitable — particularly on complex projects where changes to one element of the works may have knock-on effects on other elements, on specialist subcontractors, or on the overall programme. For residential building contracts under HIA and MBA standard forms, a signed written Change Order (called a 'variation' under the HIA contract) is not merely good practice — it is a legal requirement. The relevant home building legislation in each Australian state and territory requires the builder to obtain the homeowner's written consent to variations before the changed work commences. In New South Wales, the Home Building Regulation 2014 prescribes the minimum content for a residential building variation, including the description of the change, the price change, and the homeowner's signature. A builder who commences varied work without a signed written variation order may be unable to recover the variation price from the homeowner, even if the homeowner verbally requested the work. For commercial construction under AS 4000-1997, HIA commercial contracts, or bespoke construction contracts, the Change Order provides the mechanism for the Superintendent to direct a variation and for both parties to agree the cost and programme impact. The Change Order should be issued and signed before the changed work commences, except in emergencies where the work must proceed immediately for safety or to prevent damage to the works. In those cases, the Change Order should be executed as soon as possible after the emergency work is performed. This template covers the full scope of a well-prepared Change Order: the project identification details; the parties and their authorised representatives; the original contract details including contract type and sum; a detailed description of the scope change including additions, omissions, and substitutions; the cost impact broken down into additions and omissions with GST shown separately; the cumulative Change Order total and revised contract sum; programme impact including any extension of time to the date for practical completion; WHS obligations including the SWMS requirements for high-risk construction work under WHS Regulation 291; a list of attached documents; and execution blocks for both parties. The cost and programme tracking features of this Change Order template make it particularly suitable for projects where multiple changes are expected. By recording the cumulative total of all previous Change Orders and the revised contract sum, it provides both parties with a clear, up-to-date picture of the financial position of the project at every stage.

Create a legally compliant Subcontractor Agreement for the Australian building and construction industry. Covers Security of Payment Act rights, payment claims, adjudication, retention, defects liability, variations, WHS obligations, public liability and workers' compensation insurance. Suitable for all states and territories.