For many NDIS participants, small or significant changes to the home can make a real difference to safety and independence. This article looks at how occupational therapists assess and recommend home modifications, and how the NDIS funding pathway typically works.
What Happens During an OT Home Assessment
An occupational therapist's home assessment usually starts with a conversation about daily routines and the specific tasks a person finds difficult, followed by a walk-through of the home itself. The OT looks at entryways, steps, hallway widths, bathrooms, kitchens and bedrooms, considering how a person moves through each space, transfers between surfaces, and manages tasks like showering or getting in and out of bed. They'll also consider any mobility equipment already in use, such as a wheelchair or walking frame, and how that equipment interacts with the physical layout.
The OT then documents functional needs and links them to specific modification options, explaining why each is recommended rather than simply listing changes. This report becomes the basis of any funding request. Because everyone's home and daily needs are different, recommendations are always individual - what works for one participant won't necessarily suit another, even with a similar diagnosis or equipment.
Minor vs Major Home Modifications
The NDIS generally separates home modifications into two categories, and the distinction affects both cost and the approval pathway. Minor modifications are typically lower-cost, less structural changes - think grab rails, hand-held shower hoses, minor ramps, or lever taps. These are often quicker to assess and install, and in many cases can be organised through a participant's existing Core support budget without a lengthy separate approval process.
Major (or complex) home modifications involve structural building work - widening doorways, building a bathroom with a level-entry shower, installing an internal or external ramp system, or reconfiguring a kitchen. These require a detailed OT assessment, a written report, and usually a quote from a licensed builder before the NDIS will consider funding. Major modifications typically sit under Capital supports in a participant's plan, reflecting the higher cost and permanent nature of the work. Because major modifications alter the structure of a home, they also usually require confirmation of landlord consent if the participant is renting.
How NDIS Funding for Home Modifications Works
Home modification funding is assessed against the NDIS "reasonable and necessary" criteria, meaning the request must relate clearly to the participant's disability-related needs and be a reasonable way of meeting them. There's no fixed or guaranteed amount for any type of modification - funding depends on the individual's circumstances, the OT report, and what the NDIA determines is appropriate for that plan.
Minor modifications are often funded through Core supports, particularly the Assistive Technology or daily activities categories, and may not need separate approval if they fall within existing budget. Major modifications are generally funded as Capital supports and require a specific funding request supported by the OT's assessment report and a builder's quote. Processing times vary, so it's worth planning well ahead, especially if a modification is needed to support a hospital discharge or a change in living situation.
From Approval to Completed Work
Once a home modification is approved, the practical work begins. The OT report and any building plans are usually shared with a licensed builder or contractor who specialises in accessible home modifications - many have experience working within NDIS requirements and Australian accessibility standards. The OT typically stays involved during this stage, reviewing plans or attending a site visit to confirm the proposed build will actually meet the functional needs identified in the assessment.
Participants (or their support coordinator, if they have one) are usually responsible for engaging the builder and managing the project, unless a support coordinator or plan manager is assisting with quotes and invoicing. Once work is finished, the OT may do a final check to confirm the modification functions as intended for daily use.
Common Home Modification Examples
Ramps are one of the most common minor-to-major modifications, ranging from a simple portable ramp to a permanent structure with handrails and compliant gradients. Bathroom modifications are a frequent major modification, often involving removing a step-in shower or bath and replacing it with a level-entry shower, non-slip flooring, and strategically placed grab rails. Doorway widening is common where a wheelchair or larger mobility device needs to pass through comfortably.
Grab rails and handrails are typically minor modifications but make a meaningful difference for balance and transfers around toilets, showers, and steps. In every case, the OT's assessment determines which combination of changes is appropriate - not every home needs every modification.
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Frequently Asked Questions About Home Modifications Under the NDIS: What Occupational Therapists Assess
Do I need an OT assessment for every home modification, even small ones?
Minor modifications like a single grab rail sometimes need less formal documentation, but most home modification funding requests benefit from at least a brief OT assessment to support the request. Check with your planner or support coordinator about what's required for your specific plan and modification type.
Can I choose my own builder for NDIS home modifications?
In most cases, yes, participants can choose a licensed builder or contractor, though the NDIA generally expects quotes from providers experienced in accessible building work. It's worth confirming with your plan manager or support coordinator whether any specific requirements apply to your funding.
What if I rent my home rather than own it?
Landlord consent is typically needed before major structural modifications can proceed, and this is usually requested early in the process. Minor, non-structural changes may be more straightforward, but it's best to check with your OT and landlord before committing to any funding request.
How long does the home modification approval process take?
Timeframes vary depending on the complexity of the modification, the completeness of the OT report, and current NDIA processing volumes, so there's no fixed timeline. Planning well in advance, particularly around hospital discharges or planned house moves, helps reduce the chance of delays.
Will the NDIS cover the full cost of a major home modification?
Funding decisions are made individually against the "reasonable and necessary" criteria, so there's no standard or guaranteed amount for any modification. Your OT report and builder's quote form the basis of the request, and the NDIA determines what it will fund based on your specific plan and circumstances.