Single Project vs Annual Contract Works Insurance: How the Policy Types Differ

The information on this website is general in nature and does not take into account your objectives, financial situation, or needs. Consider seeking personal advice from a licensed adviser before acting on any information.

Contract works insurance can be arranged in different ways depending on how you operate. Some builders need cover for one clearly defined job. Others complete several jobs during the year and may want a policy that can respond across multiple projects, subject to the insurer's terms, limits and declarations.

The main choice is often between single project contract works insurance and annual contract works insurance. Both can be useful, but they are not interchangeable. The right structure depends on the nature of your work, the number of projects you take on, contract values, project durations, lender or principal requirements and the insurer's acceptance criteria.

This article provides general information for Australian builders and contractors. It does not take into account your objectives, financial situation or needs, and it is not a substitute for reviewing policy documents or obtaining professional advice.

What is single project contract works insurance?

Single project contract works insurance, sometimes called project specific insurance, is arranged for one nominated construction project. The policy is typically tied to a specific site, contract value, project period and type of work.

It may be considered where there is one major build, a standalone renovation, a civil works contract, or a project with requirements set by a principal, developer, lender or head contractor. The policy is usually designed around that job rather than the builder's entire annual program of work.

Depending on the insurer and policy wording, a single project policy may cover physical loss or damage to the works during the construction period, subject to exclusions, limits and conditions. Optional or related sections may include cover for materials on site, temporary works, transit, existing structures, professional fees, removal of debris or public liability, but these should not be assumed. They need to be checked in the quotation and policy wording.

What is annual contract works insurance?

Annual contract works insurance, also known in some contexts as a builders annual policy, annual construction insurance or blanket contract works cover, is arranged for a period of time, commonly 12 months. Instead of insuring only one named project, it is intended to cover eligible projects undertaken during the policy period, subject to the policy's terms.

An annual policy is often used by builders and contractors who complete multiple projects each year. The policy may be based on estimated annual turnover, the type of work performed, maximum contract values, project durations, locations and other underwriting information.

Annual cover is not unlimited cover for every job. Policies commonly include restrictions such as:

• maximum contract value per project;
• maximum construction period per project;
• approved types of construction work;
• territorial limits;
• turnover declarations or adjustment requirements;
• exclusions for certain high-risk activities or sites;
• requirements to notify projects above a set threshold.

For builders with regular work, annual cover can reduce the need to arrange a separate policy for every smaller project. However, each policy needs to be reviewed carefully to confirm which projects are automatically included and which require separate insurer approval.

Single project vs annual contract works insurance: key differences

The difference between single project and annual contract works insurance is mainly in the policy structure. One is built around a nominated project. The other is built around a business's eligible projects over a policy period.

When a single project policy may be considered

A single project policy may be relevant where the project is large, unusual, long-running or contractually important enough to need its own cover. It may also be requested by a project owner, principal, lender or head contractor.

Common situations include:

• A one-off build: for example, a builder undertaking a single residential or commercial project rather than ongoing work.
• A high-value project: where the contract value is higher than the limits under an existing annual policy.
• A project outside normal activities: such as a different construction method, location or type of work.
• Principal-controlled requirements: where the contract specifies particular insured parties, limits, policy period or wording requirements.
• Renovations or extensions: especially where existing structures, occupied premises or staged works create additional insurance considerations.

The main advantage is that the policy can be tailored to the nominated project. The trade-off is that it does not usually provide broader protection for other jobs unless this is specifically arranged.

When an annual policy may be considered

An annual policy may suit a builder or contractor with a steady pipeline of projects that fall within predictable values, durations and work types. For example, a residential builder completing several new homes or renovations during the year may prefer a policy structure that can respond across multiple eligible projects.

Annual cover may be useful where:

• you regularly start and complete multiple projects;
• your work is reasonably consistent in type and value;
• you want one policy period to manage rather than separate project policies;
• your projects generally fall within the insurer's automatic acceptance limits;
• you are able to provide turnover estimates and update declarations when required.

However, an annual policy still needs active management. If a project is larger than expected, takes longer than allowed, involves a different type of work or sits outside the approved location or contract value, you may need to notify the insurer or arrange separate cover.

How cost is usually assessed

The cost of contract works insurance varies between insurers and depends on the risk profile of the work. It is not possible to provide a reliable premium estimate without project and business details.

For a single project policy, pricing may be influenced by factors such as:

• the contract value or sum insured;
• construction period and maintenance period;
• location and site conditions;
• type of construction and materials used;
• whether existing structures are involved;
• security, weather exposure and site risk controls;
• requested limits, excesses and optional cover sections.

For an annual policy, insurers may also consider:

• estimated annual turnover;
• past claims history;
• number and size of projects;
• maximum contract value per project;
• the builder's experience and licensing details where relevant;
• subcontractor arrangements and risk management practices;
• the mix of residential, commercial, industrial or civil works.

If you are preparing information for a quotation, it can help to calculate realistic project values, likely construction periods and annual turnover assumptions. The site's calculators may assist with general planning inputs, although any insurance application should be completed using accurate figures requested by the insurer or broker.

Policy limits and declarations are especially important

The most common misunderstanding with annual contract works insurance is assuming that every project is automatically covered. In practice, annual policies usually define which projects are eligible and when separate notification or approval is needed.

Before relying on an annual policy for a project, check:

• Maximum project value: does the job exceed the automatic limit?
• Maximum project duration: what happens if the works run longer than expected?
• Type of work: are renovations, structural alterations, civil works or high-rise works included or excluded?
• Existing property: is damage to existing structures covered, limited or excluded?
• Named insureds: does the policy meet any requirement to note principals, owners, financiers or contractors?
• Subcontractors: are subcontractors treated as insured parties, and if so, to what extent?
• Declarations: are you required to declare projects at inception, progressively or at renewal?
• Run-off or completion: what happens to projects still underway when the annual policy expires?

For a single project policy, the same issues matter, but they are usually assessed in relation to one project. For an annual policy, they need to be managed repeatedly across your pipeline of work.

Does either policy include public liability?

Contract works insurance and public liability insurance are related but different. Contract works cover generally focuses on insured loss or damage to the construction works, materials and certain associated property, subject to the wording. Public liability cover responds to certain claims alleging personal injury or property damage to third parties, again subject to the policy terms.

Some construction insurance packages may include public liability as a section. Others may require it to be arranged separately. Do not assume that a contract works policy automatically includes contractor public liability cover, or that the liability limit will satisfy a tender or contract requirement.

If you are comparing policy structures, ask whether public liability is included, what limit applies, who is insured, and whether the cover aligns with the contractual risk you are taking on.

Questions to ask before choosing a policy structure

Choosing between single project and annual contract works insurance is not only about price. It is about whether the structure matches the way you work and the obligations in your contracts.

Useful questions include:

• How many projects will you undertake over the next 12 months?
• Are your projects similar in size, scope and risk, or do they vary significantly?
• What is the highest likely contract value for any one project?
• Will any project continue beyond the annual policy period?
• Do principals, lenders or head contractors require specific wording or insured parties?
• Will you work on existing structures, occupied premises or staged developments?
• Are materials stored off site or transported between sites?
• Do you use subcontractors, and what insurance do they carry?
• What excesses, exclusions and limits would apply if a claim occurred?

For project-specific quotation enquiries, you can start from the Contract Works Insurance homepage. If you need help understanding policy structure, declarations or whether a project may sit inside an annual policy, the brokers page may be a useful next step.

Which policy type is more suitable?

There is no single answer that applies to every builder or contractor. A single project policy may be appropriate where one project needs its own clearly defined insurance arrangement. An annual policy may be appropriate where you complete multiple eligible projects and can manage declarations, limits and renewal requirements.

The decision usually turns on:

• the number of projects you undertake;
• the size and duration of each project;
• the consistency of your work type;
• contractual insurance obligations;
• the insurer's appetite for the work;
• your ability to keep policy details and declarations up to date.

Before arranging cover, read the product disclosure statement, policy schedule and any endorsements carefully. If something is unclear, ask specific questions before the works begin. Insurance acceptance, terms, pricing and policy availability depend on the details of the project, the business and the insurer's underwriting criteria.

Published: Thursday, 17th Sep 2026
Author: Paige Estritori