Specialist Disability Accommodation (SDA) is government-funded housing for NDIS participants with extreme functional impairment or very high support needs. This complete 2026 guide explains SDA eligibility, the 5 building types, funding amounts ($28,000-$319,000/year), and how to apply.

Quick SDA Calculator: Use our free SDA Calculator to estimate your potential SDA funding based on your support needs and location.

What is SDA (Specialist Disability Accommodation)?

SDA is purpose-built or modified housing specifically designed for people with disability who have extreme functional impairment or very high support needs.

Key facts about SDA:

  • Only 6% of NDIS participants are eligible (around 28,000 people)
  • NDIS pays for the dwelling, NOT support workers inside
  • Funding ranges from $28,000 to $319,000 per year per person
  • 5 design categories based on disability needs
  • Separate from Supported Independent Living (SIL)

SDA is NOT:

  • General disability housing (that’s SIL)
  • Support workers or care (that’s funded separately)
  • Available to all NDIS participants (strict eligibility)
  • The same as group homes (though some SDA are group-style)

SDA vs SIL vs ILO: What’s the difference?

FeatureSDASILILO
What it fundsThe building/dwellingSupport workers in homeMove-out assistance
Who’s eligible6% with extreme needs15-20% needing daily supportAnyone ready for independence
Funding amount$28K-$319K/year$50K-$350K/year$15K-$35K one-time
Living arrangementPurpose-built accessible homeAny home with supportRegular home
Support workersFunded separately (SIL)Yes, included in SILNot required

Most people need BOTH SDA + SIL: SDA pays for accessible housing, SIL pays for 24/7 support workers inside.

Who is eligible for SDA?

Strict eligibility criteria - only 6% of NDIS participants qualify:

Eligibility requirement #1: Extreme functional impairment

You must have extreme functional impairment in at least one of these areas:

  • Self-care (bathing, dressing, eating)
  • Mobility (moving around home)
  • Self-management (decision-making, managing daily activities)
  • Communication (expressing needs)

Extreme impairment means: You cannot perform these activities without significant support, even with assistive technology.

Eligibility requirement #2: Current housing is inappropriate

Your current home must be:

  • Unsafe (falls risk, accessibility barriers)
  • Inadequate (can’t accommodate equipment, modifications too costly)
  • Preventing participation (can’t access community due to housing)

Eligibility requirement #3: SDA represents value for money

You must demonstrate SDA is more cost-effective than alternatives:

  • Home modifications are too expensive or impractical
  • SDA + SIL is cheaper than 24/7 in-home support
  • Alternative housing options have been exhausted

Eligibility requirement #4: Improvement in outcomes

SDA must improve your:

  • Independence
  • Social and economic participation
  • Health and wellbeing
  • Living situation

The 5 SDA building design categories

SDA is categorized by physical access needs:

1. Improved Liveability

For: People with intellectual or cognitive disability needing minimal physical support.

Features:

  • Better internal layout (wide doorways, turning circles)
  • Resilient surfaces (easy-clean materials)
  • Good lighting and acoustics
  • Minimal steps/trip hazards

Funding: $28,000-$45,000/year (lowest category)

Best for: Autism, intellectual disability, mental health conditions

2. Fully Accessible

For: People using wheelchairs or mobility aids.

Features:

  • Wheelchair accessible throughout
  • Wide doorways (minimum 850mm)
  • Step-free access
  • Accessible bathroom (roll-in shower, turning circle)
  • Kitchen at accessible height

Funding: $45,000-$85,000/year

Best for: Wheelchair users with moderate support needs

3. Robust

For: People with behaviors of concern requiring reinforced environment.

Features:

  • Reinforced walls, doors, fixtures
  • Impact-resistant surfaces
  • Secure windows and fittings
  • Safety glass
  • Controlled access points

Funding: $85,000-$135,000/year

Best for: Complex behaviors, high-risk situations

4. High Physical Support

For: People with very high physical support needs (24/7 care, ceiling hoists).

Features:

  • Ceiling hoist tracking throughout
  • Emergency power backup
  • Adjustable-height fixtures
  • Extra space for equipment
  • Wheelchair turning circles in all rooms

Funding: $135,000-$250,000/year

Best for: Spinal cord injury, muscular dystrophy, cerebral palsy (high needs)

5. High Physical Support + Fully Accessible (combined)

For: People needing BOTH physical accessibility AND high support infrastructure.

Funding: $250,000-$319,000/year (highest category)

Best for: Very high support needs with complex equipment

SDA dwelling types: How you live

SDA comes in 4 dwelling configurations:

Apartment

  • Multi-unit building (3+ units)
  • Shared common areas
  • Individual living spaces
  • Urban locations

Best for: People wanting city living, access to transport, amenities

Villa/Duplex/Townhouse

  • 2-3 separate dwellings on one site
  • Small group living
  • Some shared outdoor space
  • Suburban locations

Best for: Balance of community and privacy

House

  • Standalone home
  • 1-5 bedrooms
  • Private outdoor space
  • Residential neighborhood

Best for: Families, couples, or group living

Group Home

  • Purpose-built for 4-8 residents
  • Shared living areas
  • Individual bedrooms
  • 24/7 staff support

Best for: People needing constant supervision, social connection

SDA pricing and funding amounts

SDA funding is location-based with 4 price zones:

Design CategoryMetro (Sydney/Melb)Regional CityRegional TownRemote
Improved Liveability$28,468/year$25,621/year$22,775/year$34,162/year
Fully Accessible$56,936/year$51,242/year$45,549/year$68,323/year
Robust$85,404/year$76,863/year$68,323/year$102,485/year
High Physical Support$170,808/year$153,727/year$136,646/year$204,970/year
HPS + Fully Accessible$256,212/year$230,591/year$204,970/year$307,455/year

Additional loadings:

  • New builds: +5% for first 5 years
  • Apartments: +5-10% for central locations
  • Onsite overnight assistance: +15-25%

Note: These are 2024-25 rates. Use our SDA Calculator for updated 2025-26 prices.

How to apply for SDA funding

Application process (12-24 months typical timeline):

Step 1: Get assessment from NDIS planner

At your NDIS planning meeting:

  1. Explain why current housing is unsuitable
  2. Provide evidence of extreme functional impairment
  3. Demonstrate you’ve explored alternatives (home mods, other housing)
  4. Show how SDA will improve outcomes

Documents to bring:

  • Medical reports (specialist, GP)
  • Occupational therapy assessment
  • Current support needs documentation
  • Evidence current housing is inadequate (photos, OT report)

Step 2: NDIS requests further assessments

If eligible, NDIS may require:

  • Occupational Therapy housing assessment ($500-1,500)
  • Functional capacity assessment ($800-2,000)
  • Behavior support assessment (if Robust category)

These assessments determine appropriate SDA design category.

Step 3: NDIS decision (6-12 weeks)

NDIS reviews evidence and decides:

  • ✅ Approved: SDA funding added to plan with design category specified
  • ⚠️ More information needed: Additional assessments required
  • ❌ Not eligible: Can request review or appeal

If approved, your plan shows:

  • SDA design category (e.g., “Fully Accessible”)
  • Location price zone
  • Dwelling type preference (apartment, house, etc.)
  • Funding amount per year

Step 4: Find SDA provider (3-12 months)

With SDA in your plan, you can:

  1. Search SDA listings:

  2. Contact SDA providers directly:

    • SDA Alliance members
    • Large providers (Summer Foundation, ClarionHousing, Aruma)

  3. Work with support coordinator:

    • They can help navigate SDA market
    • Connect with providers in your area

Step 5: Move in

Once you find suitable SDA:

  1. SDA provider submits enrollment: Provider registers you as resident with NDIS
  2. SDA agreement signed: You and provider agree to terms
  3. SIL supports arranged: If needed, organize support workers (separate funding)
  4. Move-in date set: Coordinate with provider and support team

Important: SDA pays for building only. Support workers (SIL) are funded separately and must be arranged independently.

Common SDA myths debunked

Myth #1: “SDA and SIL are the same thing”

False. SDA is the building. SIL is support workers. You usually need both:

  • SDA budget: $28K-$319K for accommodation
  • SIL budget: $50K-$350K for 24/7 support

They’re separate line items in your NDIS plan.

Myth #2: “6% of NDIS participants means I won’t get it”

Not necessarily. If you have extreme functional impairment and current housing is unsafe/inadequate, you may qualify. 6% isn’t a quota - it’s the estimated proportion who need it. Apply if you meet criteria.

Myth #3: “I have to live in a group home to get SDA”

False. SDA includes apartments, villas, houses, and group homes. You can live:

  • Alone (1-bedroom SDA)
  • With partner/family
  • With 1-2 housemates
  • In group setting (4-8 people)

Design category determines features, not who you live with.

Myth #4: “SDA is only for wheelchair users”

False. While Fully Accessible category suits wheelchair users, other categories exist:

  • Improved Liveability: Cognitive/intellectual disability
  • Robust: Behaviors of concern
  • High Physical Support: Complex health needs (not just mobility)

Myth #5: “I can’t choose where I live”

Partially true. SDA availability is limited - only 18,000 dwellings nationally for 28,000 eligible participants. You may need to:

  • Waitlist for preferred area (6-24 months)
  • Consider alternative suburbs
  • Be flexible on dwelling type

However, you DO choose - you’re not assigned housing.

SDA wait times and availability

Current SDA market (2026):

  • Supply: 18,000 SDA dwellings
  • Demand: 28,000 eligible participants
  • Vacancy rate: <5% (very tight market)

Average wait times:

  • Metro areas (Sydney, Melbourne): 12-24 months
  • Regional cities: 6-18 months
  • Regional towns: 6-12 months
  • Remote areas: Limited supply, often 24+ months

High-demand design categories:

  • High Physical Support: Longest waits (18-36 months)
  • Robust: Limited supply, 12-24 months
  • Fully Accessible: Most common, 6-18 months

Tip: Apply for SDA early (before your current housing becomes crisis). Wait times mean planning 18-24 months ahead is essential.

Frequently asked questions

How much is SDA funding?

SDA funding ranges from $28,000 to $319,000 per year per person depending on design category (Improved Liveability to High Physical Support) and location (metro to remote). Metro Fully Accessible SDA averages $56,936/year. High Physical Support averages $170,808/year. Use our SDA Calculator for exact amounts.

Can I get SDA if I’m not in a wheelchair?

Yes. Only Fully Accessible and High Physical Support categories require wheelchair access. Improved Liveability (for intellectual/cognitive disability) and Robust (for behaviors of concern) are for non-wheelchair users. 6% eligibility is based on extreme functional impairment, not mobility aids specifically.

What’s the difference between SDA and supported accommodation?

SDA is NDIS-funded purpose-built housing (the building). Supported accommodation includes housing PLUS support workers (SIL). If you have SDA, you usually also need SIL funding in your plan for 24/7 support. SDA alone is just the accessible building without staff.

Can I live in SDA with my partner?

Yes. SDA can be shared by couples or families. Each person with SDA funding contributes their allocation. For example, 2 people with Fully Accessible SDA ($56,936 each) = $113,872 combined for a 2-bedroom accessible home. Provider matches compatible housemates if needed.

How long does SDA approval take?

Initial approval: 6-12 weeks after NDIS planning meeting (if assessments already completed). Full process including assessments: 6-12 months from first mention to SDA in plan. Finding actual dwelling: Additional 3-12 months. Total timeline: 12-24 months from application to move-in.

Next steps to apply for SDA

  1. Assess eligibility: Do you have extreme functional impairment? Is current housing inadequate?
  2. Gather evidence: Get OT assessment, medical reports showing functional impairment
  3. Book NDIS planning meeting: Request SDA assessment at next plan review
  4. Calculate funding: Use our SDA Calculator to estimate amounts
  5. Research providers: Browse NDIS Housing Hub for available SDA

Need help? Find SDA providers near you or connect with SDA specialist support coordinators who can guide you through the application process.

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