- SDA eligibility rests on extreme functional impairment or very high support needs — assessed on how your disability affects daily life, not on a diagnosis alone.
- Only around 6% of NDIS participants are expected to qualify, so a strong, well-evidenced application matters.
- SDA is requested through the NDIS “Home and Living” pathway, starting with a housing goal in your plan.
- The evidence — especially an Occupational Therapist’s functional capacity assessment — is where most applications succeed or fail.
- A support coordinator can coordinate the whole process, and if you are declined you have the right to an internal review and then an external appeal.
Getting Specialist Disability Accommodation (SDA) into your NDIS plan is a detailed process, and it rewards good preparation. Because SDA is reserved for people with the highest needs, the NDIS looks closely at the evidence behind every request. This guide explains who is eligible, the steps involved, and how to give your application the best possible chance. If you are new to the topic, our companion guide on what SDA is covers the basics first.
NDIS processes and forms change from time to time, and the NDIA uses “Home and Living” language rather than “SDA application”. This article is general information — always check the current steps at ndis.gov.au or with your NDIS planner or support coordinator before you submit anything.
Who is eligible for SDA?
To be considered for SDA, you generally need to meet one of two thresholds: extreme functional impairment, or very high support needs. In practice this means your disability significantly affects everyday activities — such as mobility, self-care or communication — to the point where standard housing is unsafe or unsuitable even with support and modifications. Importantly, eligibility is not decided by your diagnosis; it is decided by the functional impact of your disability, evidenced by assessment. Because the threshold is high, the NDIA estimates only around 6% of participants will qualify. If you do not meet it, other home and living supports may still help you reach your goals.
Step 1: Set a housing goal in your NDIS plan
Every SDA request begins with your plan. Your goals do not need to mention “SDA” by name, but they should clearly express what you want from your home — independence, stability, safety and long-term security. If your current plan does not reflect these aspirations, you may need to raise them at a planning meeting or through a plan reassessment. Our guide on how to request an NDIS plan review explains how to update your plan when your circumstances or goals change.
Step 2: Gather the right evidence
This is the most important stage. The centrepiece of an SDA application is a functional capacity assessment, usually completed by an Occupational Therapist, that details how your disability affects daily life and explains how you meet the SDA criteria. Strong applications also show why SDA represents value for money — for example, by reducing your need for other supports — and recommend the most suitable design category. Depending on your situation, additional evidence might include reports from other health professionals, a Positive Behaviour Support Plan, or statements from carers.
Usually essential
A functional capacity assessment from an Occupational Therapist, written specifically to address the SDA rules and recommend a design category.
Often helpful
Reports from GPs, specialists or psychologists, a Positive Behaviour Support Plan where relevant, and statements describing your day-to-day support needs.
Step 3: Submit your Home and Living request
Once your evidence is ready, it is submitted to the NDIA together with the Home and Living supporting evidence form. This is where a support coordinator earns their keep: they know the language the NDIA looks for, help pull the evidence together, and manage the submission. It helps to ask for a reference number and to keep copies of everything. One detail many families do not realise is that SDA decisions are made by a dedicated Home and Living panel at the NDIS — not by your local planner — so your planner cannot approve SDA on the spot.
A good support coordinator can make an SDA or home-and-living request far less daunting — coordinating assessments, evidence and submissions on your behalf. Humanity Care Australia provides NDIS support coordination across Adelaide and would be glad to help you plan your next step.
What happens after you apply
After submission, the NDIA reviews your evidence and may ask for more information, so it helps to respond promptly. If you are approved, your plan will set out the details — your SDA design category, the number of residents you will live with (or whether you will live alone), and the amount of SDA funding you will receive. Timing varies, and gathering quality evidence alone often takes a couple of months, so it is wise to start early — many providers suggest beginning six to eight months before you hope to move.
If your application is declined
A decision that does not go your way is not the end of the road. You can request an internal review of the decision and provide further evidence to strengthen your case — which is exactly why thorough initial reports matter so much. If the internal review is unsuccessful, you can seek an external review through the Administrative Review Tribunal. Reading the reasons in the decision letter carefully will tell you where your evidence needs to be stronger, and your support coordinator or an advocate can help you respond.
Frequently asked questions
Do I need a specific diagnosis to get SDA?
No. SDA eligibility is based on the functional impact of your disability — how it affects daily activities and whether standard housing is unsuitable — rather than on a particular diagnosis. Evidence from an Occupational Therapist is used to demonstrate this.
What is the most important part of an SDA application?
The evidence, especially a functional capacity assessment from an Occupational Therapist that clearly addresses the SDA criteria and recommends a design category. Most applications succeed or fall short based on the quality of this evidence.
How do I actually submit an SDA request?
SDA is requested through the NDIS “Home and Living” pathway. You (usually with a support coordinator) compile your evidence, complete the Home and Living supporting evidence form, and submit it to the NDIA. A dedicated Home and Living panel then decides, not your local planner.
How long does it take?
It varies. Gathering strong evidence can take a couple of months on its own, and the NDIA may request more information. Many providers recommend starting the process six to eight months before you hope to move.
Can I appeal if I am declined?
Yes. You can request an internal review of the decision and add further evidence. If that is unsuccessful, you can seek an external review through the Administrative Review Tribunal. A support coordinator or disability advocate can help you prepare.
Can Humanity Care help me apply for SDA?
Humanity Care does not provide SDA housing, but our support coordinators can help you navigate a home-and-living request — coordinating assessments and evidence — and we provide SIL support for daily living once you are settled. We would point you to an SDA provider for the housing itself.
Whether you are exploring SDA, SIL or another home-and-living option, the right guidance saves time and stress. Contact Humanity Care Australia for a free, confidential chat about your goals and how our Adelaide team can support you. Call 0402 990 505 or reach us online.
