Updated on June 11, 2026
What is Specialist Disability Accommodation?
Specialist Disability Accommodation (SDA) is NDIS funding specifically allocated towards the “bricks and mortar” of a home—the physical dwelling itself. SDA exists to help people who have extreme functional impairment or very high support needs live as independently as possible in housing that is purpose-built or modified to meet their specific requirements (Beer et al., 2019), (Crowe et al., 2024).
It is important to understand that SDA funding covers only the capital costs of the dwelling—the building, its design features, and assistive technology built into the structure. SDA does not cover the cost of support workers, personal care, or day-to-day living expenses. The NDIS recognises that appropriate housing is a critical enabler of a dignified life, civic participation, and the achievement of human rights for people with disability (Callaway et al., 2022).
SDA was introduced as part of the NDIS rollout in 2017 to attract private market investment in disability-specific housing (Phillippa et al., 2023). The program is designed to give NDIS participants a level of choice in their housing options, balanced against the criteria used by the National Disability Insurance Agency (NDIA) to make funding decisions (Crowe et al., 2024). However, only approximately 6% of NDIS participants are expected to be eligible for SDA funding, reflecting its targeted nature for those with the most extreme support needs (Wiesel, 2021).
SDA vs SIL
SDA (Specialist Disability Accommodation) is funding for the physical dwelling—the house or apartment itself. It covers the capital costs of purpose-built or modified housing with specialised design features such as wheelchair accessibility, ceiling hoists, assistive technology, or reinforced structures. SDA is about the “bricks and mortar.”
SIL (Supported Independent Living), on the other hand, is funding for the support workers who assist you with daily living tasks within your home. SIL covers the cost of personal care, meal preparation, medication management, household tasks, and other day-to-day supports provided by disability support workers. SIL is about the “people and care.”
To illustrate: if you live in an SDA property, the SDA funding pays for the accessible bathroom with a ceiling hoist and the wider doorways that accommodate your wheelchair. The SIL funding pays for the support worker who assists you with showering, dressing, and preparing meals. You can have SDA without SIL (if you have family or other supports), and you can have SIL without SDA (if you live in standard housing). However, many people with extreme functional impairment require both SDA and SIL funding to live safely and independently in the community.
This separation of housing and support funding is a deliberate policy design within the NDIS, intended to give participants greater choice and control over both where they live and who provides their support (Connellan, 2018).
The Four SDA Design Categories
1. Improved Liveability
Improved Liveability homes are designed for people with sensory, intellectual, or cognitive impairment who require a “reasonable” level of physical access. These dwellings incorporate features that enhance liveability and reduce the need for support, such as improved lighting, reduced trip hazards, better acoustics, and intuitive layouts. Improved Liveability is the most common SDA design category and is suitable for participants who do not require extensive physical modifications but benefit from thoughtful, accessible design (Kang, 2021).
2. Fully Accessible
Fully Accessible homes provide a “high” level of physical access for people with significant physical impairment, including those who use wheelchairs. These dwellings must meet stringent accessibility standards, including wheelchair-accessible bathrooms with roll-in showers, accessible kitchens with adjustable benchtops, level or ramped entries, wider doorways and corridors, and accessible outdoor areas. Fully Accessible SDA is designed to enable participants with mobility impairments to move freely and safely throughout their home with minimal or no assistance.
3. High Physical Support
High Physical Support homes offer a very high level of specialised design and physical access for people with significant physical impairment who require extensive support. These dwellings incorporate advanced assistive technology and structural features such as ceiling hoists in bedrooms, bathrooms, and living areas; emergency power backup systems; assistive and communication technologies integrated into the building; and space for specialised equipment. High Physical Support SDA is designed for participants with complex physical support needs who require assistive technology to safely transfer, mobilise, and perform daily activities.
4. Robust
Robust SDA is designed for people whose behaviour of concern may cause damage to property or pose a risk to themselves or others. These dwellings incorporate good physical access along with additional safety features such as impact-resistant walls, floors, and fixtures; secure retreat spaces for both participants and support staff; reinforced doors and windows; and durable, easy-to-clean materials. Robust SDA aims to provide a safe environment that minimises the risk of injury and property damage while supporting participants to develop skills and reduce behaviours of concern over time.
The NDIA determines which design category is appropriate based on the evidence provided in your Housing Assessment Report and supporting documentation. It is possible to transition between categories if your needs change over time, although the SDA design categories have been criticised for offering limited flexibility for participants with changing care needs, potentially restricting resident continuity in occupancy (Sarkodee et al., 2018).
Who is Eligible for SDA Funding?
SDA eligibility is highly specific and deliberately restrictive, reflecting the program’s focus on participants with the most extreme support needs. To qualify for SDA funding from the NDIS, you must meet all of the following criteria:
1. Extreme Functional Impairment or Very High Support Needs
You must have an extreme functional impairment or very high support needs related to your disability. This means your disability significantly limits your ability to perform daily activities and participate in the community without substantial support. The NDIA assesses functional impairment across multiple domains, including mobility, self-care, communication, social interaction, and learning.
2. Reasonable and Necessary
You must demonstrate that SDA funding is reasonable and necessary to help you pursue your NDIS goals. This means showing that living in purpose-built or modified housing will:
- Improve your independence and quality of life
- Provide opportunities to develop your skills and capacity
- Deliver long-term benefits that justify the investment
- Prevent long-term health deterioration
- Enable you to participate more fully in the community (Beer et al., 2019)
The “reasonable and necessary” test is central to all NDIS funding decisions. For SDA, this means demonstrating that the specialised housing features are essential to your safety, health, and wellbeing, and that standard housing would not adequately meet your needs.
3. SDA Will Help You Pursue Your NDIS Goals
Your application must clearly articulate how SDA funding aligns with and supports your broader NDIS goals. For example, if one of your goals is to live independently in the community, you must show how the accessibility features of an SDA dwelling will enable you to achieve this goal. If your goal is to reduce your reliance on support workers, you must demonstrate how assistive technology built into an SDA home will help you perform tasks more independently.
4. Current Living Situation is Inadequate
You must provide evidence that your current living situation does not adequately meet your needs and that SDA funding is necessary to address this gap. This might include evidence that your current home is inaccessible, unsafe, or requires an unsustainable level of support to maintain your health and wellbeing.
It is important to note that SDA eligibility is not automatic, even for participants with very high support needs. The NDIA carefully assesses each application on its individual merits, and there is an apparent lack of transparency and consistency in SDA funding determinations, which has undermined both participants’ outcomes and confidence in the program (Crowe et al., 2024).
Evidence Required for Your SDA Application
1. Housing Assessment Report
The Housing Assessment Report is the cornerstone of your SDA application. This report must be completed by a qualified occupational therapist (OT) with expertise in housing assessments for people with disability. The assessment typically takes between 12 to 15 hours and involves:
- A comprehensive evaluation of your functional capacity and support needs
- Assessment of your current living environment and its limitations
- Identification of the specific housing features and assistive technology you require
- Recommendations for the appropriate SDA design category
- Evidence of how SDA will help you achieve your NDIS goals and deliver long-term benefits
The Housing Assessment Report must be thorough, evidence-based, and clearly articulate why SDA funding is reasonable and necessary for your circumstances.
2. Occupational Therapy Assessment
In addition to the Housing Assessment Report, a detailed occupational therapy assessment provides clinical evidence of your functional impairment and support needs. This assessment should document:
- Your diagnosis and how it impacts your daily functioning
- Your mobility, self-care, and communication abilities
- The level of support you currently require and will require in the future
- How your disability affects your ability to live safely in standard housing
- The specific modifications or design features that would address your needs
3. Statement of Support from Health Providers
Supporting statements from your GP, physiotherapist, speech pathologist, or other allied health practitioners strengthen your application by providing additional clinical evidence of your disability and support needs. These statements should:
- Confirm your diagnosis and prognosis
- Describe the impact of your disability on your daily life
- Support the recommendations made in the Housing Assessment Report
- Explain why specialised housing is necessary for your health and wellbeing
4. Housing Plan
A Housing Plan, typically prepared by your Support Coordinator or occupational therapist, provides a comprehensive overview of your housing needs and goals. The Housing Plan should include:
- A description of your current living situation and its limitations
- Your housing goals and preferences (location, housemates, design features)
- How SDA funding will help you achieve your NDIS goals
- Your plan for finding and moving into an SDA property
- Expected outcomes and long-term benefits of SDA funding
The Housing Plan demonstrates that you have carefully considered your housing needs and have a realistic plan for utilising SDA funding effectively.
5. Additional Supporting Documentation
Depending on your circumstances, you may also need to provide:
- Reports from specialists (neurologists, psychiatrists, etc.)
- Evidence of current support arrangements and costs
- Photos or reports documenting the inadequacy of your current housing
- Letters of support from family members or carers
- Evidence of your engagement with the NDIS and progress towards your goals
The quality and comprehensiveness of your evidence are critical to the success of your SDA application. Insufficient or poorly prepared documentation is one of the most common reasons for application rejection (Crowe et al., 2024).
How to Apply for SDA Funding
Step 1: Discuss SDA with Your Support Coordinator or LAC
Begin by discussing SDA funding with your Support Coordinator or Local Area Coordinator (LAC). They can help you understand whether SDA might be appropriate for your circumstances and guide you through the initial steps of the application process.
Step 2: Engage an Occupational Therapist
Find a qualified occupational therapist with experience in NDIS housing assessments. Your Support Coordinator can help you identify suitable OTs in your area. Ensure the OT understands the NDIA’s requirements for Housing Assessment Reports and has a track record of successful SDA applications.
Step 3: Complete the Housing Assessment
Work with your occupational therapist to complete the comprehensive housing assessment. This process typically takes 12 to 15 hours and may involve multiple sessions. Be prepared to discuss your current living situation, your support needs, your goals, and your housing preferences in detail.
Step 4: Gather Supporting Documentation
While your OT is preparing the Housing Assessment Report, gather all supporting documentation, including statements from health providers, your Housing Plan, and any additional evidence that supports your application.
Step 5: Submit Your Application to the NDIA
Once all documentation is complete, submit your SDA application to the NDIA. You can do this:
- Through your Support Coordinator (recommended)
- By completing the Home and Living Supporting Evidence Form and submitting it via email, postal mail, or in person at an NDIS office or Local Area Coordinator office
Ensure all documents are clearly labelled and organised, and keep copies of everything you submit.
Step 6: Follow Up
After submitting your application, follow up regularly with the NDIA to check on the status of your application. The NDIA may request additional information or clarification, so be prepared to respond promptly to any requests.
Step 7: Review the Decision
Once the NDIA makes a decision, carefully review the outcome. If your application is approved, the SDA funding will be included in your NDIS plan, specifying the design category and any conditions. If your application is rejected, you have the right to request a review of the decision.
How Long Does the Process Take?
Assessment Phase (6-12 weeks)
Engaging an occupational therapist and completing the Housing Assessment Report typically takes 6 to 12 weeks, depending on the OT’s availability and the complexity of your needs. Gathering supporting documentation may add additional time.
NDIA Review Phase (8-16 weeks)
Once your application is submitted, the NDIA review process typically takes 8 to 16 weeks, although this can vary significantly depending on the complexity of your case and the NDIA’s current workload. The NDIA may request additional information during this time, which can extend the timeline.
Finding a Property (Variable)
Even after SDA funding is approved, finding a suitable SDA property can take considerable time. The availability of SDA dwellings varies significantly by location and design category. In some areas, particularly regional and remote locations, SDA supply is extremely limited (Phillippa et al., 2023). Participants may wait months or even years to find a suitable vacancy.
What to Do While Waiting
- Register your interest with SDA providers: Contact SDA providers in your preferred locations and register your interest in current and future vacancies. Many providers maintain waitlists and will contact you when suitable properties become available.
- Work with a Vacancy Coordination service: Vacancy Coordination services help match NDIS participants with available SDA properties. These services can significantly reduce the time it takes to find a suitable home.
- Continue working towards your NDIS goals: Maintain your engagement with the NDIS and continue working towards your goals. This demonstrates your commitment and may strengthen your case if you need to request a review or reapply.
- Explore interim housing options: If your current living situation is unsafe or unsustainable, discuss interim housing options with your Support Coordinator, such as Short-Term Accommodation (STA) or temporary modifications to your current home.
- Stay informed: Keep in regular contact with your Support Coordinator, the NDIA, and SDA providers to stay informed about the progress of your application and any new vacancies.
Common Reasons for SDA Application Rejection
1. Insufficient Evidence of Extreme Functional Impairment
The NDIA requires clear, comprehensive evidence that you have extreme functional impairment or very high support needs. Applications that lack detailed clinical evidence or fail to clearly demonstrate the severity of functional impairment are often rejected. Ensure your Housing Assessment Report and supporting documentation provide specific, measurable evidence of your limitations across multiple functional domains.
2. Failure to Demonstrate “Reasonable and Necessary”
Even if you have extreme functional impairment, you must demonstrate that SDA funding is reasonable and necessary. Applications that do not clearly articulate how SDA will help you achieve your NDIS goals, improve your independence, or deliver long-term benefits are often rejected. Your application must show that the investment in specialised housing is justified by the expected outcomes.
3. Inadequate Housing Assessment Report
A poorly prepared Housing Assessment Report is one of the most common reasons for rejection. The report must be comprehensive, evidence-based, and clearly articulate your housing needs and the specific design features required. Generic or superficial reports that do not provide detailed analysis and recommendations are unlikely to succeed.
4. Lack of Supporting Documentation
Applications that rely solely on the Housing Assessment Report without additional supporting documentation from health providers, specialists, or other professionals are weaker and more likely to be rejected. Multiple sources of evidence strengthen your application and provide a more complete picture of your needs.
5. Inconsistency Between Documents
If there are inconsistencies between your Housing Assessment Report, your NDIS plan, your Housing Plan, and other supporting documents, the NDIA may question the validity of your application. Ensure all documents are aligned and tell a consistent story about your needs and goals.
6. Current Housing Could Be Modified
If the NDIA determines that your current housing could be adequately modified to meet your needs at a lower cost than SDA funding, your application may be rejected. You must demonstrate that modifications to standard housing would be insufficient, impractical, or cost-prohibitive compared to purpose-built SDA.
7. Unclear or Unrealistic Housing Goals
Applications that do not clearly articulate your housing goals or that present unrealistic expectations are more likely to be rejected. Your Housing Plan should demonstrate that you have carefully considered your needs and have a realistic understanding of what SDA can and cannot provide.
How to Avoid Rejection
To maximise your chances of approval:
- Engage an experienced occupational therapist with a strong track record of successful SDA applications
- Provide comprehensive, detailed evidence from multiple sources
- Ensure all documents are consistent and aligned with your NDIS plan
- Clearly articulate how SDA will help you achieve your goals and deliver long-term benefits
- Work closely with your Support Coordinator throughout the process
- Be prepared to respond promptly to any requests for additional information from the NDIA
If your application is rejected, you have the right to request an internal review of the decision. Your Support Coordinator can help you understand the reasons for rejection and prepare a stronger application or review request.
SDA in 2026: Recent Changes and Updates
As of 2026, the SDA program continues to evolve in response to ongoing challenges and feedback from participants, providers, and stakeholders. Key developments and considerations for 2026 include:
1. Ongoing Supply Challenges
Despite the program’s introduction in 2017, SDA supply remains inadequate in many areas, particularly regional and remote locations. Research has consistently documented the limited availability of SDA dwellings and the challenges participants face in finding suitable vacancies (Phillippa et al., 2023), (Callaway et al., 2021). In 2026, supply constraints continue to be a significant barrier, with many participants waiting extended periods for suitable housing to become available.
2. Transparency and Consistency in Decision-Making
The lack of transparency and consistency in SDA funding determinations remains a concern in 2026. Participants and providers continue to report frustration with the subjective nature of NDIA decisions and the difficulty in predicting application outcomes. Advocacy efforts are ongoing to improve the clarity and consistency of eligibility criteria and decision-making processes.
3. Role of Community Housing Providers
Community Housing Providers continue to play a pivotal role in the SDA program, offering expertise in tenancy management, compliance, and support for participants with complex needs. However, some Community Housing Providers have paused their involvement due to financial risks and uncertainty (Crowe et al., 2024). Policy development in 2026 is increasingly recognising the need to support Community Housing Providers and ensure their continued participation in the SDA market.
4. Integration of Assistive Technology
There is growing recognition of the importance of assistive technology and smart home features in SDA dwellings. In 2026, there is increased focus on ensuring SDA properties are equipped with appropriate assistive technology to maximise participants’ independence and reduce reliance on support workers (Kang, 2021). However, challenges remain in ensuring technology is properly installed, maintained, and tailored to individual needs.
5. Focus on Participant Choice and Control
The NDIS continues to emphasise participant choice and control in 2026, including in relation to housing. However, the reality is that limited SDA supply often constrains genuine choice, particularly in relation to location, housemates, and design features. Efforts are ongoing to expand supply and improve vacancy coordination to enhance participant choice (Crowe et al., 2024).
6. Addressing Unmet Housing Needs
With only approximately 6% of NDIS participants eligible for SDA, there is growing recognition that the housing needs of the remaining 94% of participants are inadequately addressed within the current NDIS framework (Wiesel, 2021). In 2026, there are ongoing discussions about expanding the NDIS’s role in addressing the broader housing needs of participants who do not meet SDA eligibility criteria but still face significant housing challenges.
Participants considering SDA in 2026 should stay informed about policy developments and work closely with their Support Coordinators to navigate the current landscape. While challenges remain, SDA continues to provide life-changing housing solutions for eligible participants with extreme functional impairment and very high support needs.
How Centre Disability Support Can Help
At Centre Disability Support, we understand that navigating the NDIS and applying for SDA funding can be overwhelming. Our experienced team is here to support you every step of the way, from understanding your eligibility to finding the right home and accessing the supports you need to live independently.
Get in Touch
If you have questions about SDA eligibility, need support with your application, or want to learn more about our services, we’re here to help.
- Phone: 1300 433 661
- Email: [email protected]
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References
- Beer, A., Flanagan, K., Verdouw, J., Lowies, B., Hemphill, E., Zappia, G., & Woodcock, I. (2019). Understanding specialist disability accommodation funding. Australian Housing and Urban Research Institute. https://doi.org/10.18408/AHURI-3219701
- Callaway, L., Barclay, L., McDonald, R., Farnworth, L., & Winkler, D. (2021). Audit of advertised housing and support vacancies for people with disabilities in Australia. Australian Journal of Social Issues, 56(1), 88–105. https://doi.org/10.1002/AJS4.114
- Callaway, L., Batchelor, F., Winkler, D., Migliorini, C., Herd, N., Willer, B., & Koh, E. (2022). Housing and support for people with disability: Perspectives of motor accident, disability and injury insurers across Australia and New Zealand. International Journal of Environmental Research and Public Health, 19(15), 9681. https://doi.org/10.3390/ijerph19159681
- Connellan, K. (2015). Commentary on housing for people with intellectual disabilities and the National Disability Insurance Scheme reforms (Wiesel, 2015). Research and Practice in Intellectual and Developmental Disabilities, 2(1), 28–30. https://doi.org/10.1080/23297018.2015.1010449
- Connellan, K. (2018). Two hands: Delivering more and better housing for Australia’s National Disability Insurance Scheme (NDIS) participants. https://doi.org/10.26188/5C119B2A3D520
- Crowe, A., Tually, S., Faulkner, D., Slatter, M., & Mallet, S. (2024). Specialist disability accommodation in the social housing sector: Policy and practice. Australian Housing and Urban Research Institute. https://doi.org/10.18408/ahuri8129801
- Kang, M. (2021). Policy direction on the NDIS housing and living supports and services in Australia. Korean Real Estate Policy Association, 22(3), 27–48. https://doi.org/10.54091/krepa.2021.22.3.2
- Phillippa, C., Wiesel, I., & Habibis, D. (2023). Specialist disability accommodation (SDA) in New South Wales: Analysis of the National Disability Insurance Agency SDA-enrolled dwelling dataset. University of Technology Sydney. https://doi.org/10.57956/sf0k-3z11
- Sarkodee, K., Sherry, C., & Crowe, P. (2018). Creating a market for disability specific housing on Indigenous land: A case study from Yarrabah, Australia. Buildings, 8(11), 160. https://doi.org/10.3390/BUILDINGS8110160
- Wiesel, I. (2021). Housing and the National Disability Insurance Scheme. In Disability and housing in Australia (pp. 189–204). Springer. https://doi.org/10.1007/978-981-16-2244-1_11
