What is Design and Construct Professional Indemnity Insurance?
Design and construct professional indemnity (D&C PI) insurance is a specialised form of professional indemnity cover tailored for construction firms who assume both design and construction responsibilities. Unlike standard PI policies, D&C PI addresses the risks arising from the integration of design with construction performance.
Who should consider Design and Construct Professional Indemnity Insurance?
This policy is essential for builders, contractors, and design-and-construct entities operating in Australia, especially where contracts involve novated design agreements or carry “fitness for purpose” obligations.
What does D&C PI cover?
D&C PI policies are structured to respond to the broad civil liabilities that may arise from professional services associated with a building project, including the acts of subcontractors and consultants. The policy provides financial protection for claims alleging professional negligence, breaches of duty, and associated legal costs.
Professional services liability
The central feature of a D&C PI policy is its coverage for financial loss arising from a breach of professional duty in the performance of design or construction-related services. These services may include architectural design, engineering, technical specification development, construction project management, and site supervision where they are provided in a professional capacity. The policy protects the policyholder from allegations of errors, omissions, or negligence that cause third-party loss or require rectification.
Subconsultant liability
Recognising that D&C contractors often rely on architects, engineers, and other design professionals, most D&C PI policies automatically include cover for the professional services undertaken by subcontractors and consultants. If a claim arises from their defective design or advice, and the main contractor is held vicariously liable, the policy will respond accordingly.
Civil liability basis
These policies are usually written on a broad “civil liability” basis, meaning they cover a wider range of liabilities than simple negligence. This includes unintentional breaches of contract, defamation, intellectual property infringement, breach of statutory duty, and misleading or deceptive conduct under Australian Consumer Law, provided they relate to professional services.
Legal defence costs
D&C PI also covers the legal costs incurred in defending a claim, even where the allegations are unfounded. Defence costs are generally payable in addition to or as part of the policy limit, depending on the insurer and policy wording. This includes costs related to investigations, court proceedings, or disciplinary hearings.
Mitigation of loss
Another common feature is the ability to claim for costs associated with rectifying an error before it results in a claim. Known as “mitigation costs,” this benefit allows the policyholder to take remedial action, with insurer consent, and have those costs reimbursed— potentially avoiding larger legal disputes.
Typical coverage extensions
Insurers often provide optional or built-in extensions to tailor the policy to the realities of D&C projects. The following four extensions are especially critical in the Australian D&C market:
1. Principal’s indemnity
This extension allows the policyholder’s client (the principal) to be indemnified under the policy where they are drawn into a legal claim due to the actions or omissions of the policyholder. It is particularly useful in large-scale developments where the principal may be a co-defendant in a design-related dispute.
Benefit: Enhances commercial relationships and often satisfies contractual requirements where the principal demands to be named as an insured party under the PI policy.
2. Proportionate liability
In some contracts, particularly in private or large government projects, the standard rights under proportionate liability legislation (Civil Liability Acts) may be expressly excluded. This could leave the contractor exposed to 100% of the liability for damage, even if another party (such as a consultant) was mostly at fault.
This extension ensures that the insurer will still respond even if proportionate liability defences are contractually excluded, provided the agreement to do so was entered into in the normal course of business.
Benefit: Avoids unintended policy gaps when clients impose harsh risk allocation in contracts.
3. Novated contracts
A novated contract occurs when a client appoints a designer directly (e.g., architect or engineer), and then later transfers that contract to the D&C contractor. This is a common structure in design and construct procurement.
The novated contracts extension ensures the contractor is covered for design services performed prior to novation, even though the contractor was not responsible for them at the time.
Benefit: Provides seamless coverage for design liability, even when the original design was outside the contractor’s control.
4. Fitness for purpose
Many D&C contracts include an express or implied obligation that the design will result in a building or system that is “fit for its intended purpose.” This imposes a higher burden than the common law duty of reasonable skill and care.
Without a specific extension, such obligations may not be covered under standard PI wording. This extension provides cover for claims alleging that the design failed to deliver the required performance or outcome, even in the absence of negligence.
Benefit: Aligns the insurance cover with common contractual risks in D&C arrangements, reducing uninsured exposures.
Common exclusions in D&C PI policies
Most comprehensive D&C PI policies include standard exclusions to define the boundaries of cover. These exclusions typically include:
- Known claims and circumstances: Claims arising from facts or circumstances known before the policy inception.
- Contractual liability: Liability assumed solely under contract (e.g., indemnity clauses or warranties) that goes beyond what would otherwise be imposed at law.
- Fitness for purpose (unless specifically covered): Most policies exclude express fitness-for-purpose warranties unless endorsed or extended.
- Construction defects (not caused by design): Pure workmanship or construction defects unrelated to professional services are excluded — this is typically covered under a Contract Works or Public Liability policy.
- Insolvency: No cover is provided for claims arising from or caused by the financial failure of the policyholder.
- Pollution/asbestos: Standard exclusions unless specifically added.
- Deliberate acts: Fraudulent, dishonest, criminal, or malicious acts by the insured.
- Product liability and supply: Manufacturing or supply of goods is excluded unless arising from design failure.
D&C PI claims examples
1. Design flaw leading to structural issues
A D&C contractor completed the design and construction of a retail complex. Months after completion, cracking appeared in the concrete slab. Investigations revealed that an engineering miscalculation in the slab thickness led to insufficient load-bearing capacity. The client claimed damages for repair and lost rental income. As the contractor was responsible for both design and construction, the D&C PI policy responded to cover the cost of defending the claim and the settlement.
2. Novated architect responsible for waterproofing failure
The contract for the architectural designs of a high-rise residential project was novated to another contractor midway through the project. After completion, multiple apartments reported severe water ingress due to poor detailing in the façade. The original architect had developed the detailing before novation. The client sued the contractor under the D&C contract. The contractor’s D&C PI policy, including the novated contracts extension, covered legal defence costs and a negotiated settlement, even though the contractor did not create the original design.
3. Fitness for purpose dispute in educational facility
A private school engaged a contractor to deliver a new gymnasium under a D&C contract that included a requirement that the building be “suitable for competitive sports events.” After completion, it was discovered that acoustic reverberation made the space unfit for use during exams and sports. The client alleged breach of fitness-for-purpose obligations. Although there was no design negligence, the contractor’s policy included a fitness-for-purpose extension that responded to the claim and funded expert remediation.
As a basis for comparison, the table below outlines high level coverage under traditional professional indemnity insurance vs design and construct professional indemnity insurance:
Bellrock’s Team of risk advisors can assist in arranging appropriate insurance tailored to your risk exposures. Get in touch with an Advisor to discuss your requirements.
