SIL (Supported Independent Living) and SDA (Specialist Disability Accommodation) are two distinct NDIS funding supports that are often confused: SIL covers the cost of the people who support you in your home, while SDA covers the cost of the specialist home itself. Understanding which one you may be eligible for, and how they work together, is essential before approaching any NDIS provider.
SIL vs SDA: Supported Independent Living vs Specialist Disability Accommodation — 2026 AU Guide
Navigating the NDIS can feel overwhelming, particularly when terms like SIL and SDA appear to overlap. Both relate to where and how you live, yet they fund entirely different things. This guide explains what each support type covers, who is likely eligible, how they interact, and what to ask a provider or your NDIS planner before committing to either.
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What Is Supported Independent Living (SIL)?
Supported Independent Living is an NDIS funding category that pays for the assistance you receive from support workers while living in your home. It is not about the building; it is about the people and the hands-on help they provide every day.
SIL funding can cover a wide range of daily tasks: personal care such as showering, dressing, and eating; help with cooking and cleaning; medication management; and building skills so you can do more independently over time. Support can be provided around the clock or for specific hours depending on your assessed needs.
SIL is most commonly used in shared living arrangements, where several people with disability live together and share support workers, though it can also apply to individual living situations. Your NDIS plan must specifically include SIL funding, and the level of support is determined through an assessment and planning process coordinated with the National Disability Insurance Agency (NDIA).
Importantly, the NDIS does not simply approve any SIL quote automatically. Providers are required to submit a detailed roster of care, and the NDIA assesses whether the proposed supports are reasonable and necessary. Speaking with a registered support coordinator or an NDIS planner before finalising a SIL arrangement is strongly recommended.
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What Is Specialist Disability Accommodation (SDA)?
Specialist Disability Accommodation refers to housing that has been purpose-built or significantly modified to meet the needs of people with very high support needs or extreme functional impairment. SDA funding goes directly toward the cost of living in that specialised dwelling, not the support provided within it.
SDA dwellings are built to meet one of four design categories recognised by the NDIS: Improved Liveability, Fully Accessible, Robust, and High Physical Support. Each category reflects a different level of physical modification or structural feature, ranging from improved sensory design through to fully integrated ceiling hoists and reinforced fittings.
To receive SDA funding, a participant must be assessed as meeting the NDIS eligibility criteria for SDA, which involves demonstrating a significant need for specialised housing features. The NDIS website provides detailed guidance on SDA eligibility and design categories.
SDA providers who wish to offer these dwellings must register their properties with the NDIS and meet the relevant design standards. This registration requirement is an important quality safeguard for participants.
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How SIL and SDA Work Together
One of the most common points of confusion is that SIL and SDA are separate funding streams that can, and often do, apply to the same person at the same time.
You might live in an SDA-registered property (the building) and receive SIL supports (the people who assist you) within that same home. Your NDIS plan could therefore include both SDA funding and SIL funding simultaneously, with each serving its distinct purpose.
However, neither automatically comes with the other. Being eligible for SDA does not mean you will automatically receive SIL funding, and vice versa. Each must be separately justified in your plan based on your individual circumstances and assessed needs.
If you are exploring shared supported accommodation - where you live alongside other participants - it is common to encounter both SIL and SDA in the same setting. A best NDIS providers in Sydney search can help you identify registered providers offering both support types in your preferred location.
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Who Is Eligible for SIL and SDA?
Eligibility for both supports requires that you are an NDIS participant and that the funding is assessed as reasonable and necessary for your situation.
For SIL, eligibility is generally assessed for participants who need daily or continuous support to live as independently as possible and whose informal supports (such as family) cannot reasonably meet all of those needs. The assessment considers your functional capacity, your living circumstances, and your goals.
For SDA, the eligibility bar is deliberately set for people with the most significant needs. The NDIS describes SDA as intended for a relatively small proportion of participants who have very high support needs or an extreme functional impairment. The assessment involves detailed evidence from occupational therapists, medical professionals, and other specialists. You can review the NDIS eligibility criteria for SDA at the NDIS home and living page.
If you believe you may qualify for either support but it is not currently in your plan, you can request a plan review. For contested decisions, the Administrative Review Tribunal handles external reviews of NDIS decisions.
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Pricing and What Counts as Reasonable Cost
Neither SIL nor SDA has a simple flat price. Costs vary based on location, dwelling type, the level of support required, and the design category of the property.
The NDIS sets pricing limits for SIL as part of its broader support categories, and registered providers must operate within those arrangements. You can review current support category pricing at the NDIS Pricing Arrangements and Price Limits page.
For SDA, the NDIS calculates a contribution based on the enrolled design category, your location, and whether you are in a shared or individual arrangement. The SDA payment is intended to contribute toward the reasonable cost of the dwelling rather than covering every expense in every circumstance.
Our cost guide provides further context on how NDIS pricing works across support categories. Always confirm current rates directly with the NDIA or your plan manager, as pricing arrangements are updated periodically.
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Choosing a Provider: What to Ask
Whether you are looking for a SIL provider, an SDA provider, or both, the quality of the provider matters enormously. All registered NDIS providers are regulated by the NDIS Quality and Safeguards Commission, which handles registration, audits, complaints, and provider misconduct.
Before signing any service agreement, consider asking prospective providers:
- Are you registered with the NDIS Quality and Safeguards Commission for the relevant support category? - Can you provide references from current or former participants? - How are support workers recruited, trained, and supervised? - What is your process if my needs change significantly? - For SDA: what design category is the property enrolled under, and can I see the enrolment documentation? - What happens to my support arrangement if I wish to move or change providers?
Taking time to compare providers and ask these questions protects you from arrangements that may not suit your needs. See our methodology for how we evaluate and compare NDIS providers in our directory.
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Practical Next Steps for 2026
If you are starting this process in 2026, the following steps will help you move forward with confidence:
First, review your current NDIS plan. If SIL or SDA funding is not included but you believe you may be eligible, contact your NDIA planner or support coordinator to discuss a plan review.
Second, gather evidence. For SDA in particular, strong supporting evidence from an occupational therapist or other specialist is critical to a successful application.
Third, research registered providers in your area. Not every registered provider operates in every location, and wait times for SDA properties can vary significantly by region.
Fourth, seek independent advice. A registered support coordinator or plan manager can help you navigate options without being tied to a single provider. Always verify professional credentials and NDIS registration before engaging anyone for paid NDIS support services.
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Frequently Asked Questions
Q: Can I have both SIL and SDA funding in the same NDIS plan? Yes. SIL and SDA fund different things - supports versus the dwelling - and many participants with high needs have both included in their plan. Each must be separately assessed and justified. Q: Does moving into an SDA property mean I will automatically get SIL funding too? No. Moving into an SDA property does not automatically trigger SIL funding. You must have SIL separately assessed and included in your NDIS plan based on your support needs. Q: What if my NDIS plan does not include SDA but I think I should be eligible? You can request a plan review and provide supporting evidence from relevant health professionals. If your review request is unsuccessful, you may be able to seek an external review through the Administrative Review Tribunal. Q: Are SIL and SDA providers required to be registered with the NDIS? Yes. Providers delivering SIL and SDA must be registered with the NDIS Quality and Safeguards Commission. Registration involves auditing and compliance requirements designed to protect participants.---
Sources
- National Disability Insurance Scheme - NDIS - Specialist Disability Accommodation Explained - NDIS - Home and Living - NDIS Pricing Arrangements and Price Limits - NDIS Quality and Safeguards Commission - Administrative Review Tribunal
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Information in this article is general only and not personal advice. Verify the details with the linked sources or an appropriately qualified Australian professional before relying on them.
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