If you’ve been told the agency wants an independent assessment of your housing or support needs, it can sound like something has gone wrong. In my experience sometimes that is the case, other times it’s just that the evidence presented is conflicting and the agency can’t make a determination using what they have.
An independent occupational therapy assessment, sometimes called an independent medical examination or IME, is simply a way for a decision-maker to get an objective, expert view when a lot is riding on the outcome and the existing evidence doesn’t agree.
We want to explain what one of these assessments is, why it gets requested, and what the process looks like from where you sit as the participant. Much of it will feel familiar, because in a lot of ways it isn’t so different from a thorough home and living assessment you may have had before.
What is an independent assessment?
An independent assessment is a comprehensive functional assessment carried out by an occupational therapist who hasn’t been involved in your care. Most often, we see them for access requests, or for housing supports (SDA and SIL).
The word independent is what’s important here, the OT isn’t there to advocate for you or for the agency. They’re there to look at the situation as it is, weigh the evidence, and give an honest account of your functional capacity and support needs. The findings might support what you’ve asked for, or they might not. That impartiality is the whole point, and it’s what gives the IME report its weight.
SDA vs SIL – what’s the difference?
SDA stands for Specialist Disability Accommodation, the housing funded for people who need a home designed around very high physical or complex support needs. SIL stands for Supported Independent Living, the day-to-day support some people receive in their home.
Both are significant funding decisions, and both turn on a careful, evidence-based picture of what a person can do and what support they actually need. The difference between SDA and SIL lies in these definitions; SDA refers to the actual housing, while SIL refers to the support staff who assist with daily living.
Why the agency or a lawyer requests an independent SDA or SIL assessment
Typically, you don’t commission an SDA, SIL or other independent assessment yourself, and you generally don’t need to go looking for it; a decision-maker asks for it.
That might be the NDIA or a lawyer acting in a review or appeal, either for the NDIA or a participant directly. They request an independent assessment when the evidence in front of them is contested or incomplete.
Quite often, by the time an independent assessment is requested, there’s already a thick file. We’re sometimes handed a pack of ten, twelve, fifteen reports and pieces of evidence, and a good number of them contradict each other. One assessment or IME report says one thing, another says the opposite, and the decision-maker is left trying to work out which account is true.
That’s the situation an independent assessment is designed for.
What an independent SDA or SIL assessment can look like for you
From your side, the SDA assessment and SIL assessment experiences are much like any comprehensive OT assessment.
An occupational therapist comes to where you live, spends time with you, and looks at how you manage across daily life: personal care, mobility, transfers, domestic tasks, communication, getting out into the community, and how your environment and supports either help or get in the way. They’ll usually speak to the people who know your situation, which might include family, support workers, your coordinator or other clinicians.
Before the OT meets you, they review the brief from the lawyers or the agency. That brief sets out what’s actually in contention and the specific questions the assessment needs to answer. They read the existing evidence, including all those conflicting reports, and form a view about where the disagreements lie and what the evidence does and doesn’t establish.
Then they complete a thorough, objective assessment of your situation and write that up in a report addressed to the decision-maker. It’s medico-legal in effect, which simply means it’s written to stand up to scrutiny in a setting where it may be challenged.
So the difference isn’t really in what happens in the room. It’s in the rigour around it – the brief, the review of contested evidence, the discipline of staying objective, and a report written to answer precise questions rather than to tell a story.
What a good independent assessment gives everyone
For you, the value in an SDA or SIL assessment is a clear, fair account of your needs that doesn’t depend on who shouts loudest in the file.
For the decision-maker, it’s a single defensible reference point when everything else conflicts.
A well-run independent assessment doesn’t guarantee a particular outcome, and it shouldn’t. What it offers is an honest, expert reading of the evidence, which is usually what was missing.
At Optimal Living Therapy, we complete SDA assessments and SIL assessments regularly, with every IME report being peer-reviewed internally by a senior OT before it goes anywhere. We’re trusted to do this work by both participant-aligned and agency-appointed legal teams, which only happens if the work is genuinely impartial. If you’ve been asked to have an independent assessment, that reputation is worth knowing about, because the quality of the OT doing it matters a great deal.
If you’ve been asked to have an independent SDA or SIL assessment and you’d like to understand what’s involved, our team is happy to talk it through. You can call us on (08) 6117 4266, get in touch online, or submit a referral through our NDIS referral form.
