Builder Insurance NSW: HBCF, Professional Indemnity, and Public Liability Explained

If you are about to sign a building contract in NSW, your builder's insurance situation is one of the most consequential things to check, and one of the least understood. Builder insurance in NSW comprises three distinct frameworks: the Home Building Compensation Fund (HBCF), professional indemnity (PI) insurance, and public liability insurance. Each covers different risks. None of them are interchangeable.

This guide explains what each type covers, when it applies, and, most importantly, how to independently check it before you hand over any money. It also covers something most guides skip: how a builder becomes eligible for HBCF cover in the first place, and why an insurance check, like a licence check, confirms compliance rather than the financial health of the business you are about to contract with.

This article is a decision aid, not legal or financial advice. Verify all insurance information with the relevant NSW regulator before signing a contract. Seek independent professional advice for your specific circumstances.

Quick Answer: NSW Builder Insurance, Before You Sign

HBCF (Home Building Compensation Fund): required for most residential jobs over $20,000 (including GST). It is last-resort cover: it only pays out if your builder becomes insolvent, dies, disappears, or has their licence suspended after failing to comply with a compensation order. Check it free at the HBC Check portal before you pay a deposit.
Professional Indemnity (PI): covers design and documentation errors by registered practitioners. Already required for design practitioners and engineers; extends to registered building practitioners from 1 July 2027. Mostly relevant to Class 2, 3, and 9c buildings, not a standard standalone house build or renovation.
Public Liability: covers injury or property damage to a third party during construction. Not a universal licence condition, but a standard contract expectation, typically $10 million to $20 million cover. Ask for a Certificate of Currency.
The catch: all three confirm compliance, not stability. A current HBCF certificate means icare has assessed your builder as eligible to take on the work. It does not tell you how that business is actually performing, or what sits behind the name on the contract. Insurance and licence checks are a starting point when you check your builder, not the full picture.

Builder Insurance in NSW: The Three Types You Need to Understand

A licensed builder in NSW sits within a layered insurance framework. Here is what each type covers, whether it is mandatory, and how to check it, before the sections below go into detail on each one.

HBCF (Home Building Compensation Fund): covers builder insolvency, death, disappearance, or licence suspension, as a last resort. Mandatory for most residential jobs of more than $20,000 (including GST), unless exempt. Held by the principal contractor, your licensed builder. Check it free via the HBC Check portal at verify.licence.nsw.gov.au/home/HBCF.
Professional Indemnity (PI): covers design errors, documentation mistakes, and professional advice failures by registered practitioners. Already mandatory for registered design practitioners and professional engineers; extends to registered building practitioners under the Design and Building Practitioners Act 2020 (DBP Act) from 1 July 2027. Verify DBP registration at verify.licence.nsw.gov.au/home/DBP and request a Certificate of Currency.
Public Liability: covers third-party injury or property damage during construction. Not a universal condition of a builder's licence, but commonly required through contracts, development-consent conditions, or site arrangements, and typically held by the licensed builder. There is no free public portal for this one, so request a Certificate of Currency directly.

Understanding which insurance applies to your project requires knowing two things: the contract value and the type of building work. The sections below explain each type in detail, including how each one links back to your builder's licence and what it will not tell you.

Home Building Compensation Fund (HBCF): NSW's Statutory Last-Resort Cover

The HBCF is the foundation layer of NSW's residential building insurance framework. It is a statutory scheme administered by icare, regulated by SIRA (the State Insurance Regulatory Authority). For any residential building work (including renovations) with a contract value of more than $20,000 (including GST), unless exempt, the licensed builder must obtain an HBCF Certificate of Insurance before taking any money or starting work.

That last point is critical. A builder who asks for a deposit before producing the HBCF certificate is breaching the Home Building Act 1989.

What HBCF covers

HBCF is a last-resort fund. It only pays out when one of four specific trigger events occurs:

Builder insolvency: builder insolvency has historically been the dominant HBC claim trigger
Builder's death
Builder's disappearance
Licence suspension following a failure to comply with a court or NCAT order to pay compensation

Serious defects, delay, or a stalled project do not by themselves activate HBCF. A qualifying trigger must occur: insolvency, death, disappearance, or licence suspension following non-compliance with an applicable Court or NCAT money order. Disputes with a builder who is still operating and solvent go through NSW Fair Trading or NCAT, not the HBCF.

Coverage limits

Cover of up to $340,000, subject to policy limits; this cap has not changed since the Home Building Regulation 2014
Minimum non-completion cover for partially completed work: 20% of the contract price (as varied)
Major defects: 6 years from completion
Other losses: 2 years from completion

The $340,000 cap is worth noting in context. SIRA's own review data shows average construction costs for new dwellings now reach $263,000 to $399,000 depending on dwelling type. For larger projects, the HBCF may not cover the full loss if the builder collapses. SIRA is consulting on whether to raise the cap to $400,000, but that change had not been enacted as at August 2026.

What HBCF does not cover

Disputes, delays, or cost blowouts with a solvent builder
Professional errors by architects, engineers, designers, or other practitioners acting in their own professional capacity (generally a PI matter; see below)
Third-party injury or property damage on site (public liability covers this)
Owner-builder work (different rules apply)

This distinction is narrower than it looks. HBC is not limited to workmanship defects: SIRA's homeowner guidance confirms it can also cover losses arising from faulty design provided by the insured building business itself, provided the other HBC requirements and a qualifying trigger event (such as insolvency) are satisfied. The PI/HBC split turns on who provided the design and in what capacity, not simply on whether the defect is labelled a "design issue."

HBCF Eligibility: What It Means and How to Check It Before You Sign

Most homeowners assume "the builder has HBCF insurance" is one fact you either see or don't. It is actually two separate checks, done at two different points, and understanding the difference is part of a proper check on your builder before you sign.

General eligibility: is the builder permitted to obtain HBC insurance? Check the builder's NSW licence. A builder licence with no HBC-related condition attached indicates they have HBCF eligibility. This is the pre-contract-signing check.
Project cover: is your particular build insured? Once the contract is signed, the builder can seek a Certificate of Insurance specific to your project. Whether they can obtain that certificate depends on their HBCF limits, including their open job limits. This is the post-contract-signing, pre-deposit-payment check.

You can run both the general eligibility check and the project cover check at verify.licence.nsw.gov.au/home.

A reminder: this check only confirms a builder is compliant to do the work. It does not tell you about the risk behind the business.

How to check HBCF

Use the free HBC Check portal at verify.licence.nsw.gov.au/home/HBCF (also accessible via hbccheck.nsw.gov.au). You can search by:

Insurance certificate number
Builder name or licence number
Company name
Property address

The portal shows the certificate's issue date, insured work address, principal contractor details, and whether any prior claims have been paid against the certificate. Do not rely solely on the copy your builder provides; check independently using this portal before paying any deposit.

For more detail on the HBCF checking process and what the portal results mean, see How to Verify a Builder's HBCF Insurance in NSW.

Before you sign, on HBCF:

Professional Indemnity Insurance: New Requirement for Registered Building Practitioners from 1 July 2027

Professional indemnity insurance is not a single new requirement landing on one date. Registered design practitioners and professional engineers already have PI insurance obligations under the Design and Building Practitioners Act 2020 (DBP Act). What is changing is the requirement for registered building practitioners: the temporary exemption that has applied to that group since the DBP Regulation 2021 commenced has been extended and now runs until 30 June 2027. From 1 July 2027, registered building practitioners will also need to hold PI insurance.

Who must hold PI insurance, and who does not

This is the most important nuance in this article. The PI insurance mandate applies specifically to registered building practitioners under the DBP Act, not to every NSW building licence holder.

The DBP Act registration scheme currently applies primarily to practitioners working on:

Class 2 buildings (multi-unit residential, three or more dwellings), covering both new construction and alteration, repair, and renovation work on existing buildings
Class 3 buildings (boarding houses, accommodation buildings), for new construction; the extension to alteration, repair, and renovation work on existing Class 3 buildings has been deferred until 1 July 2028, with exclusions for some lower-risk Class 3 buildings and particular types of work
Class 9c buildings (aged care facilities), for new construction; the extension to alteration, repair, and renovation work on existing Class 9c buildings has similarly been deferred until 1 July 2028
Practitioners who provide building compliance declarations on regulated buildings

Building class, not a shorthand like "medium-density housing," is the reliable test here. Some medium-density housing is actually classified as Class 1 rather than Class 2, which puts it outside this scheme.

If you are having a standalone house (Class 1a) built or renovated under a standard NSW Fair Trading contractor licence, your builder is generally not a registered building practitioner under the DBP Act and is not required to hold PI insurance under that Act. Ordinary work on a standalone house does not become DBP-regulated merely because the contractor holds a NSW builder licence. They still need HBCF (for jobs of more than $20,000) and it is worth checking their public liability cover, but the DBP-mandated PI obligation does not automatically apply to them.

However, if your project involves new construction on a Class 2, 3, or 9c building, alteration/repair/renovation work on an existing Class 2 building, or if your builder has voluntarily registered under the DBP Act, the PI requirement applies now to design practitioners and engineers, and from 1 July 2027 to registered building practitioners. You can request proof of coverage as part of your pre-contract checks.

If you are unsure which category your project falls into, you can check whether your builder holds DBP Act registration at verify.licence.nsw.gov.au/home/DBP.

What PI insurance covers

PI insurance covers claims arising from a registered practitioner's professional conduct; things that HBCF does not touch:

Design errors and documentation mistakes (e.g., misinterpreting engineering plans, failing to pass on design changes to the build team)
Building compliance declaration errors (a registered practitioner who signs off incorrectly on a compliance declaration)
Professional advice failures (incorrect advice given in the practitioner's professional capacity)

The DBP Act creates a statutory duty of care in relation to economic loss caused by building defects, and design and documentation errors do not always manifest as visible defects on the day of handover; they can emerge years later. Limitation periods for bringing this kind of claim can be complex, since the DBP duty, the Limitation Act, and long-stop provisions in planning legislation all interact. Homeowners should obtain legal advice about a particular claim rather than relying on a single headline figure.

What PI insurance does not cover

Physical defects from poor workmanship (HBCF territory if the builder is insolvent)
Builder insolvency or non-completion of work (HBCF)
Third-party injury or property damage during construction (public liability)
Contract disputes, delays, or cost overruns

Coverage amounts

The DBP Regulation 2021 does not prescribe a fixed minimum dollar amount. The regulatory standard is "adequate indemnity": Building Commission NSW guidance confirms there is no fixed minimum, and practitioners must form and document their own reasonable assessment of what is adequate given the nature, volume, and risk profile of their work.

How to check PI insurance

The public DBP register at verify.licence.nsw.gov.au/home/DBP confirms registration status, but as at August 2026, the register does not display live PI insurance details for each practitioner. To check coverage, you need to:

Request a Certificate of Currency directly from the practitioner. A valid certificate will show: insured name, policy number, coverage dates, cover limits, and insurer name. Ensure the insured name matches the entity in your contract.
Contact the insurer directly using contact details from the insurer's official website (not just those on the certificate) to confirm the policy is active.
Check the insurer is ASIC-licensed at asic.gov.au.

You can also check a practitioner's registration status via Service NSW at service.nsw.gov.au/transaction/check-the-registration-of-a-professional-engineer-design-practitioner-or-building-practitioner.

Before you sign, on PI insurance:

Public Liability Insurance for NSW Builders: The Third Layer

Public liability insurance is an important insurance check for homeowners, although it is not the same type of statutory project insurance as HBC, and NSW law does not make it a universal condition of every builder's licence. It can be required through your building contract, development-consent conditions, work involving public land, or other arrangements, and checking for it is still a sensible step before you sign. Unlike HBCF, there is no free public portal to check it; ask the builder for a current Certificate of Currency and check the insured entity, policy period, and level of cover directly.

What public liability covers

Third-party personal injury occurring on site during construction (for example, a neighbour or visitor injured on the property)
Third-party property damage caused by the builder or their workers (for example, damage to an adjoining property during excavation)
Legal costs and compensation arising from covered incidents

What public liability does not cover

Damage to the builder's own tools or materials (contract works insurance covers this)
Construction defects in the finished work (HBCF and statutory warranties apply to defects)
Builder insolvency or non-completion of work (HBCF)

A note on workers compensation: Workers compensation is a builder obligation, not a homeowner one. All NSW employers with employees must hold it under the Workers Compensation Act 1987. It is reasonable to ask your builder to confirm their workers compensation cover is current, particularly if they engage subcontractors. It is distinct from public liability and is not checked through the same channels.

How much cover is standard?

NSW legislation does not prescribe a minimum dollar amount for public liability insurance. Industry practice and most residential building contracts consistently require $10 million to $20 million per occurrence for residential work, with $10 million commonly specified as the minimum in subcontracting arrangements. This is the industry standard you should expect to see on a Certificate of Currency, not a statutory requirement.

How to check public liability insurance

Request a Certificate of Currency from the builder before signing the contract. The certificate must show: insured name, policy number, coverage dates, coverage limits, and insurer name. Request a certificate dated within 30 days of expected construction commencement, and confirm directly with the insurer (using contact details from the insurer's official website) that the policy is current.

A certificate that shows an expiry date before your expected project completion date means you should confirm renewal arrangements and obtain an updated certificate after renewal; many liability policies renew annually, so this is not automatically a coverage gap.

Before you sign, on public liability:

What None of These Insurance Types Cover

Understanding what each type does not cover is as important as understanding what it does. None of the insurance types above protect you against:

Ongoing disputes with a solvent builder: HBCF is a last resort; PI and public liability do not resolve contract disputes
Delays and cost blowouts: these are contract and NCAT matters
Defects discovered during the build (before handover): these are generally contract and warranty matters while the builder is still operating
Owner-builder work: different rules apply; check with SIRA

If something goes wrong with a solvent builder, the pathway is: direct negotiation with the builder, then a complaint to NSW Fair Trading, then NCAT. Insurance does not bypass this process.

Insurance Checks Are Linked to Licensing, and Both Have the Same Blind Spot

HBCF, PI, and public liability all exist because someone, an insurer, or icare acting as the HBCF underwriter, has already assessed the builder against a defined standard and decided they clear it. In that sense, checking a builder's insurance is the same type of check as checking their licence: both confirm that a business currently meets a compliance bar. A NSW Fair Trading licence confirms a builder is legally allowed to contract for building work. An HBCF certificate confirms icare has assessed them as eligible to take on your specific project. Neither one tells you how that business is actually performing behind the scenes: whether they are paying subcontractors on time, whether the people behind the company have a history with previous businesses, or whether there are disputes or other signals on the public record.

This is worth being direct about. A builder can hold a current licence, a valid HBCF certificate, and adequate public liability cover, and still be under financial pressure. A full project book and a large team are not the same as financial stability. The checks above tell you the builder has cleared a bar at a point in time. They do not tell you the trajectory the business is on, or what sits behind the entity you are about to sign with.

That is the gap a broader check on your builder is for: not instead of the insurance and licence checks in this guide, but alongside them, looking at the business risk behind the name on the contract.

Insurance Verification Checklist: What to Ask Before Signing

Use this checklist before paying any deposit or signing a building contract in NSW:

NSW Fair Trading licence: confirm your builder holds a current contractor licence at verify.licence.nsw.gov.au/home. This is the base compliance check every insurance check below sits on top of.
HBCF Certificate of Insurance: the builder must provide this before taking any money for projects of more than $20,000 (including GST), unless exempt. Check independently using the HBC Check portal at verify.licence.nsw.gov.au/home/HBCF, and confirm the property address and contract value match your project.
DBP Act registration (if applicable): if your project involves regulated buildings (Class 2/3/9c) or design-and-construct work, check the practitioner is registered at verify.licence.nsw.gov.au/home/DBP.
PI Certificate of Currency (if the practitioner is registered under the DBP Act): request directly from the practitioner and check with the insurer. Already required for registered design practitioners and engineers; extends to registered building practitioners from 1 July 2027.
Public Liability Certificate of Currency: request from the builder; look for $10M to $20M coverage, confirm with the insurer.
Workers Compensation confirmation: ask the builder to confirm this is current if they employ workers or engage subcontractors.
Name matching: ensure the insured name on every certificate matches the entity name signing your contract. A mismatch signals an identity issue worth clarifying before you proceed.

For a broader pre-contract verification process, see How to Check a Builder in NSW: The Complete Verification Guide and the NSW Pre-Contract Builder Checklist.

Insurance Signals Worth Clarifying Before You Sign

The following are signals in the public record or in the documentation a builder provides that are worth raising before you commit:

A builder requests a deposit before providing the HBCF Certificate of Insurance: this is a breach of the Home Building Act 1989 on projects of more than $20,000
A builder claims HBCF does not apply to a project that clearly exceeds the $20,000 threshold
A Certificate of Currency shows the insured name does not match the entity you are contracting with
A registered design practitioner, engineer, or (from 1 July 2027) registered building practitioner cannot produce a current PI Certificate of Currency
A Certificate of Currency shows an expiry date before the expected project completion date
A builder provides a generic insurance brochure rather than a policy-specific certificate showing a name, policy number, and current coverage dates

None of these signals constitutes a verdict on a builder. Each one is worth raising directly, and if the response does not resolve the concern, it is worth seeking independent legal or building advice before proceeding.

For a broader view of builder risk signals (including insolvency indicators and licence history), see Builder Insolvency Warning Signs: 8 Red Flags to Spot in 2026.

Frequently Asked Questions: Builder Insurance in NSW

What insurance must a builder have in NSW?

Licensed builders in NSW must obtain an HBCF Certificate of Insurance before taking money or starting work on residential projects valued at more than $20,000 (including GST), unless exempt. Registered design practitioners and professional engineers already have professional indemnity insurance obligations under the Design and Building Practitioners Act 2020, and this extends to registered building practitioners from 1 July 2027. Public liability insurance is not itself a universal licence condition, but it is a sensible check: ask your builder for a current Certificate of Currency. These are three distinct layers covering different risks.

Is professional indemnity (PI) insurance the same as HBCF?

No. They cover entirely different things. HBCF is a last-resort fund that protects homeowners if the builder becomes insolvent, dies, disappears, or has their licence suspended following a tribunal order. PI insurance covers claims arising from a registered practitioner's professional errors: design mistakes, documentation failures, compliance declaration errors. A builder can be insolvent without ever having committed a professional error, and a practitioner can make a professional error while remaining fully solvent.

How do I verify a builder has HBCF cover in NSW?

Use the free HBC Check portal at verify.licence.nsw.gov.au/home/HBCF. You can search by the certificate number your builder provides, the builder's name or licence number, or the property address. The portal shows whether a valid certificate exists and whether any prior claims have been paid against it. Always check independently; do not rely solely on the copy your builder hands you.

How do I check my builder before I sign, beyond insurance?

Insurance and licence checks are a good starting point, but they only confirm compliance at a point in time, not the wider risk profile of the business. Checking your builder before you sign should also look at what an insurance certificate does not show: director history, other entities linked to the same people, and dispute or insolvency signals in the public record. This is not a substitute for the HBCF, PI, and public liability checks above; it is the layer that sits alongside them.

Does the PI insurance requirement apply to a builder doing a kitchen renovation on my standalone house?

Generally no. The DBP Act's registration scheme, and therefore the PI insurance obligation, applies primarily to practitioners working on Class 2, Class 3, and Class 9c buildings, and to those providing building compliance declarations on regulated buildings. A builder renovating a standalone house (Class 1a) under a standard NSW Fair Trading contractor licence is not a registered building practitioner under the DBP Act and is not required to hold PI insurance under that Act, simply by holding a NSW builder licence. They are still required to hold HBCF (for jobs of more than $20,000), and it is worth checking their public liability cover as well. Source: NSW Government: building practitioner obligations.

Can I refuse to pay a deposit until my builder shows me their HBCF certificate?

Yes, and the law requires the builder to provide the certificate before taking any money on projects of more than $20,000. A builder who demands a deposit without first producing the HBCF Certificate of Insurance is breaching the Home Building Act 1989. Source: Service NSW: Use the HBC Check.

What is the HBCF payout limit in NSW?

Cover is up to $340,000, subject to policy limits, set in the Home Building Regulation 2014 and unchanged since then. There is also a minimum non-completion cover for partially completed work, capped at 20% of the contract price (as varied). SIRA data shows average construction costs for new dwellings now reach $263,000 to $399,000, meaning the cap may not cover the full loss on larger projects if the builder collapses. SIRA is consulting on whether to raise the cap to $400,000, but that change had not been enacted as at August 2026. Source: SIRA HBCF reform consultation.

What does a builder need to become eligible for HBCF cover?

icare, which administers HBCF, assesses each builder's financial performance, equity exposed to the building operations, technical capability, and trading history before approving them as an eligible entity. A successful assessment produces a Certificate of Eligibility setting the builder's open job limits and maximum contract value. Only once a builder holds active Eligibility can they buy a Certificate of Insurance for your specific project, the document you check via the HBC Check portal. Source: icare: Am I eligible for HBCF?.

What does PI insurance mean for me as a homeowner in practical terms?

If a registered practitioner, such as a design practitioner, engineer, or (from 1 July 2027) a registered building practitioner managing a Class 2 apartment project, makes an error in their design documentation or building compliance declarations that results in a financial loss for you, their PI insurance provides financial backing to cover the cost of rectification. The DBP Act creates a statutory duty of care in relation to economic loss caused by building defects, but limitation periods for bringing this kind of claim can be complex; homeowners should get legal advice about their specific situation rather than relying on a single headline time limit. Source: NSW Government: insurance cover for building work.

Does a renovation builder need PI insurance?

It depends on both the practitioner's registration and the building and work involved, not just the word "renovation". Alteration, repair, and renovation work on existing Class 2 buildings is within the DBP scheme now. The extension of that scheme to alteration, repair, and renovation work on existing Class 3 and 9c buildings has been deferred until 1 July 2028. A builder undertaking a standard residential renovation on a Class 1a standalone house under a Home Building Act licence is not required to hold PI insurance under the DBP Act simply because they hold a NSW builder licence. If you are unsure which category applies to your project, check whether your builder holds DBP Act registration at verify.licence.nsw.gov.au/home/DBP.

Key Regulatory Sources

HBC Check: free HBCF checking by certificate number, builder name, or property address. Open portal
icare: Am I eligible for HBCF?: explains how icare assesses builder Eligibility before a Certificate of Insurance can be issued for a project. View page
DBP Practitioner Register: check DBP Act registration status for building and design practitioners. Open register
NSW Fair Trading Licence Check: check building contractor licence status. Check licence
SIRA: Home Building Compensation: regulator overview of the HBCF scheme. View page
NSW Government: Insurance cover for building work: official summary of insurance types for building practitioners. View page
Building Commission NSW: Regulations update: official confirmation of the PI exemption deferral for registered building practitioners to 30 June 2027 (requirement applies from 1 July 2027). View page
Resolving building disputes in NSW: what to do if something goes wrong with a solvent builder. View page

This article is produced as a decision aid. It does not constitute legal or financial advice. Insurance requirements, legislative references, and regulatory positions in this article are current as at 14 August 2026. The professional indemnity insurance requirement for registered building practitioners takes effect from 1 July 2027, and the extension of the DBP Act to alteration, repair, and renovation work on existing Class 3 and 9c buildings is deferred until 1 July 2028. Always check current requirements with the relevant NSW regulator and seek independent professional advice for your specific situation.