Do I need a specific diagnosis?

No. Eligibility is based on functional impairment and support needs, not diagnosis. A participant with the same condition may or may not qualify depending on their needs.

Who writes the SDA report?

Usually an occupational therapist familiar with SDA. Choose one who has written SDA reports before.

NDIS SDA eligibility: a plain-language guide

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By SDA Listings Editorial · 16 July 2026 · 7 min read

The eligibility test

To receive SDA, the NDIA must be satisfied that:

The participant has extreme functional impairment or very high support needs.
SDA is the most appropriate solution — mainstream housing plus supports isn't enough.
The proposed dwelling design and location represent value for money.

Evidence you'll need

OT assessment covering functional capacity.
Housing plan explaining why SDA is required.
Support letters from medical specialists, if applicable.

Choosing your OT

OTs who write SDA reports regularly know the framework. Ask for examples of past approved cases (de-identified). A generic report from an unfamiliar OT is a common reason for rejection.

If you're refused

Ask for internal review within 3 months. Add new evidence — often another OT opinion or updated medical reports. Escalate to the AAT only if internal review fails.

Once you're approved

Head to Find an SDA Home and start shortlisting immediately. Good vacancies move quickly.

Frequently asked questions

Do I need a specific diagnosis?: No. Eligibility is based on functional impairment and support needs, not diagnosis. A participant with the same condition may or may not qualify depending on their needs.
Who writes the SDA report?: Usually an occupational therapist familiar with SDA. Choose one who has written SDA reports before.