Living safely and independently at home is something most of us take for granted. But for NDIS participants, the wrong home environment can turn everyday tasks into genuine barriers. The good news is that the NDIS funds home modifications — and an occupational therapist (OT) is the professional who gets the ball rolling.
If you or someone you care for is an NDIS participant, understanding what an OT can assess is the clearest path to getting the right modifications approved and funded. This post walks you through exactly that.
What Are NDIS Home Modifications?
NDIS home modifications are permanent or semi-permanent changes made to a participant’s home to support their disability-related needs. These changes are funded under the NDIS when they are considered reasonable and necessary — meaning they directly relate to a participant’s disability and help them live more safely and independently.
Common examples include grab rails in the bathroom, ramps at entry points, widened doorways, ceiling hoists, and full bathroom or kitchen adaptations. The NDIS does not fund cosmetic changes or general home improvements — every modification must be clinically justified.
Modifications can be funded whether the participant owns or rents their home, provided the property owner gives written consent for any structural changes.
Why an OT Assessment Is the Starting Point
Before the NDIS approves funding for any home modification, an occupational therapist must complete a formal assessment. This is not just a box-ticking exercise. The OT’s clinical reasoning and written report are the foundation of the entire funding application.
The NDIA relies heavily on the OT’s evidence to determine what modifications are reasonable, necessary, and value for money. Without a thorough assessment and a well-documented report, funding requests are commonly delayed or rejected.
Only occupational therapists registered with the Australian Health Practitioner Regulation Agency (AHPRA) are authorised to complete NDIS home modification assessments.
What Does an OT Actually Assess?
The assessment is a comprehensive process that looks at the participant as a whole person — not just their diagnosis. Here is what a qualified OT examines:
Your Daily Function and Mobility
The OT observes and evaluates how you move through your home, how you complete personal care tasks, how you transfer (for example, from a wheelchair to a shower seat), and whether you need the support of a carer to do so safely. They assess your functional capacity across daily living activities and identify where your environment is creating risk or limiting independence.
Your Physical Home Environment
The OT visits your home and physically assesses every area relevant to your needs. This includes:
- Entry points and external access (steps, pathways, thresholds)
- Bathroom and toilet layout and accessibility
- Bedroom access and circulation space
- Kitchen height and manoeuvrability
- Doorway widths and flooring surfaces
- Hallways and internal transitions between rooms
They look at what the space currently prevents you from doing — and what structural or non-structural changes could address those barriers.
Your Goals and Future Needs
A good OT assessment does not only focus on your current situation. It factors in your goals, your likely functional trajectory, and the needs of any carers supporting you. If your condition is progressive, the OT will recommend modifications that account for future needs so you are not applying for new funding every few years.
Types of Home Modifications an OT Can Recommend
Based on their assessment, an OT can recommend the following types of modifications:
Bathroom and Toilet Modifications This is the most common category. An OT can recommend the removal of a bathtub to install a roll-in or walk-in shower, the installation of grab rails beside the toilet, shower and bath, and the fitting of lever-style mixer taps. For wheelchair users, they may recommend a lowered basin with appropriate clearance underneath.
Ramps and External Access Where steps create a barrier to entering or exiting the home, an OT can recommend the installation of a fixed or portable ramp. The specifications — width, gradient, handrail requirements — are all detailed in the OT’s report.
Doorway Widening Participants using wheelchairs or mobility aids frequently require wider doorways. An OT will measure current widths, assess which doorways are critical to the participant’s daily movement, and recommend widening where required.
Ceiling and Portable Hoists For participants who require physical assistance with transfers, an OT can recommend the installation of a ceiling hoist track system. This supports both the participant’s safety and the physical wellbeing of carers.
Bedroom Modifications This includes creating adequate turning and circulation space for wheelchair users, as well as access from the bedroom to the bathroom. Bedroom-specific modifications are assessed in the context of the participant’s full nightly and morning routine.
Kitchen Adaptations Where cooking and meal preparation are identified goals, an OT may recommend height adjustments to benchtops, accessible storage solutions, or modified tap fittings to support greater independence.
Minor vs Complex Modifications: What’s the Difference?
The NDIS classifies home modifications into three tiers, and the tier determines what type of OT assessment is required:
Category A Minor Modifications (under $10,000): Non-structural changes such as grab rails, lever taps, non-slip surfaces, and portable ramps. Any AHPRA-registered OT can complete this assessment.
Category B Minor Modifications ($10,000–$20,000): More substantial non-structural changes such as widening internal doorways or installing a ceiling hoist. These require a specialised home modification assessor with post-graduate training in complex home modifications.
Complex Modifications (over $20,000 or structural): Major structural works such as bathroom rebuilds, external ramps with footings, platform lifts, or home extensions for accessibility. A specialised assessor is mandatory, and detailed justification is required. Approval timelines for this tier typically run between 8 and 16 weeks.
How the Assessment Cost Is Covered
The cost of an OT home modification assessment — which typically ranges between $400 and $1,200 depending on the complexity of the assessment — is funded from the participant’s Capacity Building budget under the “Improved Daily Living” support category. It is not deducted from the home modifications budget itself, so participants should be aware of how their plan budget is structured before booking.
What Happens After the Assessment?
Once the OT completes the assessment, they prepare a detailed written report outlining the recommended modifications, the clinical justification for each one, and estimated costs. This report is submitted to the NDIA as part of the funding request.
From there, the NDIA reviews the report and either approves the modifications, requests more information, or declines specific items. Approval for minor modifications generally takes 4 to 8 weeks. Once approved, the participant can engage a registered builder or contractor to carry out the works.
The OT may also be involved at the completion stage — checking that the modifications were implemented as recommended and are functioning as intended.
Frequently Asked Questions
Can a physiotherapist complete an NDIS home modification assessment? No. Under the NDIS, only AHPRA-registered occupational therapists are authorised to conduct formal home modification assessments. Physiotherapists play an important role in rehabilitation and mobility support, but the home modification assessment role is specific to OTs.
Does the NDIS fund home modifications for renters? Yes, provided the property owner gives written consent for the works to proceed. It is worth having that conversation with your landlord early in the process.
What if I need a modification but it is not in my current plan? You can request a plan review and ask for home modifications to be included. Your OT’s assessment report will be key to supporting that request.
How long does the OT assessment take? A home visit typically takes between two and six hours, depending on the number of areas being assessed and the complexity of your needs. The OT will also spend time preparing the written report after the visit.
Conclusion
An OT assessment is not just a formality; it is the clinical backbone of any successful NDIS home modification application. A thorough, well-documented assessment gives participants the best possible chance of getting the right modifications funded promptly.
At Hope Physio, our team works closely with occupational therapists and NDIS participants to support the pathway toward safer, more accessible living. If you have questions about the process or want to understand your options, reach out to our team. We are here to help you get the support you need, in the place you call home.