Understanding Liability in CTP Claims for Serious Injuries Involving Home Modifications
Home modifications following a serious motor accident injury in Greater Sydney are assessed under the Motor Accident Injuries Act 2017 (MAIA), which governs all Compulsory Third Party (CTP) claims in New South Wales. Insurers assess liability based on whether the injury was caused by a motor vehicle accident, not on the nature of the modification itself. The assessment focuses on the legal and factual basis for the claim, not on the type of home adaptation sought.
A claim for home modifications is not a standalone entitlement. It arises only if the claimant has suffered a serious injury as defined under the MAIA, and if the modification is reasonably necessary to accommodate that injury. Insurers do not assess liability based on the cost, design, or location of the modification. Instead, they examine whether the injury occurred in a motor accident, whether it qualifies as serious, and whether the modification is directly related to the injury and reasonable in cost and purpose.
What Insurers Consider When Assessing Liability
Insurers assess liability by examining several key factors under the MAIA and the Motor Accident Injuries Regulation 2017. These include:
- Whether the claimant was a driver, passenger, pedestrian, cyclist, or motorcyclist at the time of the accident.
- Whether the injury occurred in a motor vehicle accident that involved a motor vehicle registered in NSW or operating on NSW roads.
- Whether the injury meets the definition of a serious injury under the MAIA, including the requirement that the injury results in a whole person impairment of at least 15%.
- Whether the home modification is medically necessary and supported by a report from a qualified medical practitioner.
- Whether the modification is reasonable in cost and proportionate to the injury, as assessed by an independent assessor or insurer.
The insurer will not accept a claim for home modifications if the injury does not qualify as serious, or if the modification is not directly linked to a permanent or long-term impairment. For example, a ramp installed for a temporary recovery from a soft-tissue injury would not be considered reasonable under the scheme.
Evidence That Matters in Liability Assessments
Insurers rely on specific evidence to assess liability in claims involving home modifications. The most critical items include:
- A medical report from a treating practitioner or independent medical assessor confirming the nature and permanence of the injury.
- A report from an allied health professional, such as an occupational therapist, detailing the functional limitations and recommending the modification.
- A cost estimate from a licensed builder or contractor, showing the modification is reasonable and not excessive.
- Photographs of the home and the modification, taken before and after installation.
- A record of the claimant’s efforts to obtain the modification through other means, such as government grants or community support.
Insurers may request a site inspection to verify the modification’s purpose and compliance with the claim. They may also seek a second opinion from an independent assessor if the medical evidence is unclear or inconsistent.
Time Limits and Procedural Requirements
There is a strict 3-year time limit from the date of the motor accident to make a claim for home modifications under the CTP scheme. This limit applies regardless of when the need for the modification becomes apparent. The claim must be made through the insurer of the at-fault vehicle, or through a Nominal Defendant if the at-fault driver is not insured or cannot be identified.
If the claim is made after the 3-year period, the insurer may refuse it unless the claimant can demonstrate exceptional circumstances, such as a delayed diagnosis of a serious injury. In such cases, the claimant must apply to the Motor Accident Commission for an extension, which is not guaranteed.
Disputes and Review Options
If an insurer refuses a claim for home modifications, the claimant may request an internal review. If the review is unsuccessful, the claimant may apply to the NSW Civil and Administrative Tribunal (NCAT) for a determination. The claimant must provide all relevant evidence, including medical reports, cost estimates, and correspondence with the insurer.
A claim for home modifications may also be subject to a dispute over whether the injury qualifies as serious. In such cases, the claimant may need to undergo an independent medical assessment. The outcome of the assessment will determine whether the claim proceeds under the serious injury pathway.
Practical Example
A 48-year-old woman was a passenger in a car that collided with a tree in Sydney’s Northern Beaches in October 2024. She sustained a spinal cord injury that resulted in permanent lower limb paralysis. Her treating neurologist confirmed a whole person impairment of 32%. She required a home modification to install a wheelchair-accessible bathroom and a ground-level entry. The insurer initially refused the claim, arguing the modification was not reasonable. After the claimant submitted a report from an occupational therapist and a cost estimate from a licensed builder, the insurer approved the claim.
Next Steps
Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.