A Lender’s Guide to the Structure of a Builder Side Deed & Building Contract in Australia17 min read

Published By:

Professional man in a suit smiling, possibly for Elementor Single Post.

Gavin McInnes

Founder of GRM LAW

Key Takeaways:

  • Direct Contractual Rights: You must implement a builder’s side deed to establish a direct legal relationship with the builder, because without it, you have no legal right to step in and prevent the project from being abandoned if the borrower defaults.
  • Building Contract Protections: Before finalising the side deed, ensure the underlying building contract includes specific default triggers and financial security like bank guarantees, allowing you to take work out of the builder’s hands rather than terminating the entire project.
  • Mandatory Cure Periods: Structure your side deed to include a specified remedy period and clear transfer provisions, ensuring you have the necessary time to cure a borrower’s breach and the flexibility to assign a new party to complete the development.
  • Statutory Payment Risks: You must account for the Building Industry Fairness (Security of Payment) Act 2017 when stepping into Queensland projects, as unpaid subcontractors can place charges that freeze project funds and severely disrupt your cash flow management.
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May 12, 2026

Introduction

In Australian construction financing, a lender faces significant risks—a theme that reflects the broader risks in the Australian private credit market—especially if a borrower defaults on their loan or if the builder becomes insolvent during the project. A builder’s side deed is a critical tool that provides lenders with direct contractual rights, allowing them to step in and manage the project to protect their investment and minimise potential losses.

This guide provides essential information on the structure of a builder’s side deed and the underlying building contract, which is critical knowledge given the ongoing regulatory changes for non-bank lenders. It focuses on the key provisions a lender must consider to ensure the successful completion of a project, thereby safeguarding their financial interests in a volatile construction industry.

Interactive Tool: Check If You Need a Builder Side Deed & Step-In Rights

Builder’s Side Deed & Step-In Rights Checker

Quickly check if your lending structure requires a builder’s side deed and what protections you must negotiate.

Are you a lender or financier involved in a construction project?

Does your loan agreement require direct contractual rights with the builder (e.g., to receive default notices, cure breaches, or step in)?

Is the construction project located in Queensland?

✅ A Builder’s Side Deed is Mandatory

Your lending structure requires a builder’s side deed. Without this deed, you lack direct rights to receive default notices, cure breaches, or step in if the borrower defaults.

Section 106 of the Strata Schemes Management Act 2015 (NSW) and Section 62 of the Building Industry Fairness (Security of Payment) Act 2017 (QLD) highlight the critical need for direct contractual rights and proactive risk management.

Ensure your deed includes step-in rights, cure periods, and priority clauses to protect your investment.
Review Your Builder’s Side Deed with a Lawyer

⚠️ Queensland Projects: Special Risks Apply

In Queensland, the Building Industry Fairness (Security of Payment) Act 2017 (QLD) creates unique risks for lenders exercising step-in rights. Subcontractor charges and statutory payment claims can freeze project funds and disrupt your ability to manage the project.

Specialist legal advice is essential to structure your side deed and building contract correctly.
Get Specialist Advice on BIF Act Risks

⚖️ This Tool is for Lenders & Financiers

This checker is designed for lenders or financiers involved in construction project funding. If you are a developer, builder, or another party, your legal requirements may differ.

For tailored advice on construction contracts or dispute resolution, consult our specialist team.
Speak to a Construction Contracts Lawyer

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Understanding Builder’s Side Deeds & Their Importance for Lenders

What Is a Builder’s Side Deed

A builder’s side deed is a legal document that establishes the rights and obligations of three separate parties involved in the same construction project.

Furthermore, this document is designed to work alongside the primary loan agreement and the building contract, and is commonly known by several other names, including:

  • A tripartite deed.
  • A step-in deed.
  • A consent deed.

The core purpose of this deed is to align the interests of all parties and clarify their roles and responsibilities in one coordinated agreement.

Typically, the parties involved in this structure are:

  • The Lender: The financial institution or secured party providing the construction finance.
  • The Borrower: The developer or property owner who is the obligor under the loan.
  • The Builder: The construction company or counterparty responsible for carrying out the works.

The Critical Role of a Side Deed in Australian Construction Financing

In construction financing, a side deed is a critical tool for mitigating the lender’s risk.

Its primary function is to create a direct contractual relationship between the lender and the builder, providing the lender with rights that do not exist under the standard building contract between the borrower and builder. This direct link is essential if the borrower defaults on their loan or becomes insolvent.

Without a side deed, the lender has no legal right to intervene, and the builder could terminate the construction contract, leaving the project unfinished.

Because an incomplete project significantly reduces the value of the lender’s security, having a side deed in place allows the lender to:

  • Preserve their investment during a default.
  • Ensure project continuity despite borrower insolvency.
  • Minimise potential losses on the development.

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When a Builder’s Side Deed Is Essential for Your Lending Structure

Mandatory Triggers for Requiring a Side Deed

A side deed becomes a non-negotiable component of the lending structure when finance conditions demand direct contractual rights that cannot be secured otherwise.

Consequently, lenders often require this deed to gain contractual comfort that goes beyond the primary loan agreement. After all, without a side deed, a lender has no direct legal relationship with the builder.

Key situations that make a side deed mandatory in Australian construction financing include:

  • Specific finance conditions where the terms of the loan explicitly require the lender to have direct rights, such as receiving default notices from the builder, having a period to cure the borrower’s breaches, and possessing step-in rights to take over the project.
  • When the project requires formal third-party consents that directly impact the lender’s security. For instance, a landlord may need to consent to a fit-out financing arrangement, allowing the lender to keep the lease active to protect its collateral if the tenant defaults.
  • Situations where the lender requires guaranteed priority for payments or security, or the right to continue the construction contract if another party defaults, which can only be enforced through a direct agreement with the builder.

Situations Where a Side Deed Is Highly Recommended

Even when not strictly required by finance conditions, a side deed is highly recommended as it provides significant strategic advantages for risk management.

Specifically, it allows a lender who is not a party to the building contract to exercise a degree of control and oversight over the project. This is particularly valuable for managing risk and ensuring the project’s successful completion.

Furthermore, a side deed offers a lender greater oversight in several key areas, including:

  • Monitoring the quality of construction works to ensure they meet the required standards, ultimately protecting the value of the asset.
  • Granting the lender the right to access the construction site and receive regular progress reports directly from the builder.
  • Stipulating insurance requirements and clarifying liability, ensuring adequate coverage is in place throughout the project.
  • Providing the lender with direct access to warranties and guarantees related to the construction work.
  • Gaining the right to approve or be notified of significant variations to the scope of works or the assignment of key sub-contracts.

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Key Negotiations for the Building Contract Before the Side Deed

Securing Information & Project Oversight Rights

A well-structured building contract must give the developer or lender access to the builder’s financial information.

The most useful documents include:

  • Profit and loss statements that reveal ongoing performance
  • Balance sheets showing assets, liabilities and net worth
  • Creditor ledgers outlining outstanding debts and payment terms

These records help the lender gauge project viability and the builder’s capacity to weather cash-flow pressure.

The contract should also reserve the right to request evidence of payments to trade contractors and suppliers.

To strengthen day-to-day oversight, parties can rely on the following measures:

  • Regular attendance at Project Control Group (PCG) meetings so the lender or developer can question the builder directly
  • Inviting key subcontractors to those meetings to confirm they are being paid on time

By combining financial disclosure with direct engagement, the developer reduces the risk of unpaid subcontractors walking off the job.

Establishing Clear Default Triggers & Termination Procedures

To avoid uncertainty when drafting construction contracts, it’s crucial to set out specific events of default; relying on general breach principles only invites disputes.

Key default triggers should include:

  • Departing from the agreed construction program without a valid reason
  • Failure to comply with a developer’s written direction
  • Reasonable belief the builder cannot pay its debts as they fall due
  • Subcontractors refusing to attend site because they have not been paid

The agreement must also detail a formal two-step termination process:

  1. Notice of breach – a written notice giving the builder (commonly) 10 business days to remedy the default
  2. Termination notice – issued if the breach remains unrectified, formally ending the contract

Clear triggers and a defined procedure minimise delay if the developer or stepping-in lender needs to act.

Implementing Financial Protections & Step-In Mechanics

Every construction contract should embed financial security against non-performance.

Common forms of security include:

  • Bank guarantees provided by a financial institution
  • Retention money withheld from progress payments (usually 5–10 % of the contract sum)

Both options create a fund the developer can draw on if the builder defaults.

The contract should also provide a right of set-off, allowing the developer to deduct any loss, expense or debt owed by the builder from payments otherwise due.

As a practical alternative to outright termination, the agreement can permit the developer or lender to take work out of the builder’s hands. This step-in right keeps the project moving under new management and often proves less disruptive than ending the entire contract.

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Structuring the Side Deed: A Lender’s Negotiation Checklist

Core Step-In Rights & Cure Periods

A central component of any side deed is the inclusion of clauses that manage contract defaults. Specifically, the deed should require the builder to provide the lender with notice of any defaults by the borrower under the building contract. This notification process ensures the lender is not caught by surprise.

Following a notice of default, the side deed must grant the lender a specified remedy period. This “cure period” allows the lender time to step in and remedy the borrower’s breach before the builder can terminate the construction contract.

Ultimately, this right to cure is fundamental because it empowers the lender to:

  • Perform the borrower’s obligations under the agreement.
  • Keep the project on foot and avoid unnecessary disruptions.

Security Enforcement & Transfer Provisions

The side deed must explicitly state that the lender enforcing its security interests will not trigger a default or give the builder an entitlement to terminate the construction contract. This clause is vital to protect the lender’s position when taking action to secure its investment.

Furthermore, the agreement should contain clear transfer provisions that outline the lender’s rights to:

  • Assign, novate, or otherwise transfer its interests under the side deed.
  • Transfer its interests under the building contract.

This flexibility is crucial for ensuring project continuity, as it allows the lender to bring in another party to complete the development if necessary.

Project Control & Information Sharing Clauses

A side deed can provide a lender with a degree of oversight and control that would otherwise be unavailable. Negotiating specific clauses allows the lender to monitor the project’s health and protect the value of its security.

Key operational controls and information-sharing rights to include are:

  • Quality and Standards: The right to monitor the quality of construction works to ensure they meet required standards, helping to avoid potential construction disputes.
  • Site Access and Reporting: The ability to access the construction site and receive regular progress reports directly from the builder.
  • Insurance and Liability: Stipulations for adequate insurance coverage and clear allocation of liability throughout the project.
  • Warranties and Guarantees: Direct access for the lender to warranties and guarantees related to the construction work.
  • Variations and Assignments: The right to approve or be notified of significant variations to the scope of works or the assignment of key sub-contracts.

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How Queensland’s Security of Payment Law Affects Lender Step-In Rights

An Overview of the Building Industry Fairness (BIF) Act

The Building Industry Fairness (Security of Payment) Act 2017 (BIF Act) is a key piece of Queensland legislation designed to ensure that contractors and subcontractors are paid for the work they perform. Ultimately, the BIF Act provides several mechanisms for resolving construction payment disputes and securing payments to maintain cash flow throughout the contracting chain and provide security to parties who might otherwise be left unpaid.

The primary mechanisms available under the BIF Act include:

  • Adjudication processes.
  • Payment withholding requests.
  • Subcontractor charges.
  • The ability to place a charge over a property.

The Impact of Subcontractors’ Charges on Project Funds

Chapter 4 of the BIF Act creates a significant consideration for any lender planning to step into a construction project. Specifically, this chapter allows unpaid subcontractors to place a charge over money that is payable by a developer or lender to the head contractor, which effectively freezes those funds to secure the subcontractor’s claim.

For a lender exercising its step-in rights through a side deed, a subcontractor’s charge can create major complications. These complications arise because the charge can:

  • Prevent the lender from accessing and controlling project funds intended for the completion of the works.
  • Legally earmark the money to pay the subcontractor’s claim first.
  • Disrupt the project’s cash flow and undermine the lender’s ability to manage the project’s finances effectively.

Progress Payments & Adjudication Complications

Lenders must also consider the impact of Chapter 3 of the BIF Act, which establishes a statutory right to progress payments and a rapid adjudication process for resolving payment disputes. This system operates independently of the building contract and can create legally enforceable payment obligations in a very short timeframe.

Consequently, this can affect a lender’s strategy, as an adjudication decision may require a payment to be made to the builder, influencing project cash flow at a critical moment. The timing of these statutory claims and adjudication proceedings may not align with the lender’s step-in process, which can lead to:

  • Complications in the decision to intervene.
  • Uncertainty regarding the financial position the lender inherits.

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Conclusion

A builder’s side deed is an essential tool for lenders in Australian construction financing, providing direct contractual rights to manage a project if the borrower defaults. Proactive negotiation of the underlying building contract is equally important, ensuring that key protections are in place to address the risks of builder insolvency and maintain project continuity.

To ensure your financial interests are fully protected in your next construction project, contact GRM Law’s experienced private lender and non-bank finance lawyers today. Our team provides specialised legal advice on structuring side deeds and building contracts to safeguard your investment and provide peace of mind.

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Published By:

Professional man in a suit smiling, possibly for Elementor Single Post.

Gavin McInnes

Founder of GRM LAW

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Our senior lawyers will contact you to discuss your situation & outline next steps.

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