29 September 2026 · 9 min read
SIL vs SDA: What Is the Difference?
Learn the differences between SIL and SDA funding, how NDIS housing rules work, and what costs you cover personally.

Article
The difference between sil vs sda comes down to people versus buildings. Supported Independent Living pays for support workers who help you with personal routines. Specialist Disability Accommodation funds the physical home with built-in accessibility features.
Key Takeaways
Supported Independent Living (SIL) funds support workers for daily routines like showering, cooking, and overnight care.
Specialist Disability Accommodation (SDA) funds physical buildings modified for severe mobility or sensory needs.
SIL comes from your Core budget, while SDA comes from your Capital budget.
You do not need SDA to receive SIL support. Most participants receive SIL in standard suburban homes.
Everyday living costs like food, utilities, and general rent are never covered by either budget.
What Is Supported Independent Living (SIL)?
Supported Independent Living is personal, day-to-day support. Participants use this funding to live on their own or with housemates in standard rentals, private properties, or family homes. The National Disability Insurance Agency allocates SIL funding under Assistance with Daily Life in your Core budget.
SIL funding pays for support worker hours. It does not pay for your property rent, your weekly food shopping, or your power bills. Our team works with participants to set up daily routines that suit their schedules, whether they live in Hurstville, Miranda, or surrounding suburbs across the St George and Sutherland Shire areas.
SIL funding covers:
Assistance with morning and evening hygiene, including showering, grooming, and dressing.
Help with meal preparation, cooking, and kitchen clean-up.
Basic household chores like washing clothes, cleaning floors, and changing bed linen.
Prompting and administering prescribed medications on time.
Active overnight care or sleepover shifts to assist with bathroom visits or positioning.
High-Intensity Supports and Nurse Oversight
Some participants have health needs that go beyond standard household help. When personal routines involve complex medical care, supports fall under the high-intensity category.
Support workers in these settings work under the direction and supervision of registered nurses. These tasks include:
Complex bowel care routines and monitoring.
Enteral feeding through PEG or nasogastric tubes.
Indwelling and suprapubic catheter management.
Tracheostomy suctioning and care.
Registered nurse oversight helps staff follow clinical care plans, track health indicators, and act early if medical issues arise.
How the NDIS Budgets SIL Support
The NDIS organizes funding into distinct budgets so care hours remain separate from housing costs:
Your Core budget holds the Assistance with Daily Life category that funds SIL support staff.
Your SIL team provides the rostered workers who carry out morning, daytime, and overnight tasks.
Your home can be an ordinary rental, an apartment, a family house, or an approved disability dwelling.
Understanding how care workers are funded makes it easier to look at how the physical building is covered.
What Is Specialist Disability Accommodation (SDA)?
Specialist Disability Accommodation covers the physical property. SDA comes out of your Capital supports budget. It does not fund support workers, daily therapies, or transport. It funds the construction, modifications, and land costs of specialised housing.
The NDIA limits SDA to a small group of participants. Official data from the NDIA Quarterly Report shows that roughly 94% of NDIS participants do not qualify for SDA. To qualify, an applicant must have extreme functional impairment or very high support needs that standard homes cannot accommodate safely.
The Four SDA Design Categories
Every registered SDA property must comply with one of four categories defined in the SDA Design Standard:
Improved Liveability: Built for participants with sensory, intellectual, or cognitive impairments. Features include high-contrast paint on doorframes and step edges, easy-to-read layouts, and muted sensory finishes.
Fully Accessible: Designed for people with major physical mobility limits, including power wheelchair users. Homes include step-free thresholds throughout, wide internal doors, and wheel-in showers.
High Physical Support: Includes all Fully Accessible elements, plus ceiling hoist tracks, automated doors, emergency power backups, and space for assistive technology.
Robust Design: Built to handle severe physical impacts and sensory triggers. Properties use impact-resistant wall linings, durable fittings, secure outdoor fences, and soundproofing to keep participants and staff safe.
Side-by-Side Breakdown: How SIL and SDA Differ
A direct comparison makes the operational rules and funding purposes clear:
NDIS Budget: SIL sits under Core Supports (Assistance with Daily Life). SDA sits under Capital Supports (Home Modifications and Housing).
What You Receive: SIL funds support staff, personal care, and supervision. SDA funds the physical home, including ramps, wide doorways, and hoists.
Eligibility Baseline: SIL requires a demonstrated need for person-to-person support with everyday activities. SDA requires documented extreme functional impairment or very high support needs.
Approved Settings: SIL can be used in standard rentals, private family homes, or shared accommodations. SDA funding only applies to dwellings registered and enrolled with the NDIA.
Living Expenses: Neither support pays for your grocery bill or electricity account. SDA requires a tenant rent contribution, while SIL carries no rent charge.
Practical Questions About Supported Living
Sorting out housing arrangements involves clear planning around how budgets work alongside daily routines.
Can You Get SIL Without SDA?
Yes. Most participants who receive SIL funding live in regular community housing. You can use your SIL allocation while living in a private rental, an apartment with housemates, or your own property in Sydney.
SDA is only relevant when standard buildings cannot meet your physical requirements, even after ordinary modifications. If your main requirement is regular assistance from a support worker, SIL handles your needs in a typical home. Our overview of how supported living works explains how these arrangements run day to day.
How Does the Roster of Care Work?
Your SIL funding relies on a planning schedule called the Roster of Care. This document maps out your weekly schedule hour by hour, from breakfast to bedtime.
The Roster of Care defines support ratios across the week:
One-to-one (1:1) support when you require individual assistance for showering, personal care, or specific community outings.
Shared support, such as one worker between two participants (1:2) or three participants (1:3), during shared meal preparation or relaxed evening hours.
Night coverage, showing whether your plan requires an active overnight worker or a sleepover shift.
The NDIA assesses this timetable against reasonable and necessary rules before setting your final plan budget.
What Living Expenses Must You Pay Personally?
SIL and SDA do not cover standard personal living costs. You cover your own food, internet, electricity, clothing, and entertainment using your personal money, such as the Disability Support Pension.
If you live in an SDA property, you pay a set contribution called the Reasonable Rent Contribution. The NDIA benchmarks this rate at 25% of the basic Disability Support Pension, plus 25% of the pension supplement and 100% of any Commonwealth Rent Assistance you receive. The NDIA pays the remaining property subsidy straight to the accommodation provider.
Managing Costs Across NDIS Housing
Keeping your finances organized comes down to two separate payment streams:
NDIS Plan Payments: Your Core budget pays your SIL provider for care staff. If you are eligible for an SDA home, your Capital budget pays the housing provider for the building.
Personal Income Payments: You pay for your weekly food, utility bills, and personal hobbies from your pension or wages. In an SDA property, you also pay your rent contribution directly to the landlord.
Separating your personal expenses from your NDIS budgets also applies to your service contracts.
Protecting Your Choice and Control
You have the right to keep your property owner and your care provider completely separate. In the past, single providers often controlled both the house lease and the support workers inside it. That setup made it difficult for participants to change workers without risking their tenancy.
The NDIS Quality and Safeguards Commission establishes guidelines that support participant rights through separate agreements:
A residential tenancy or occupancy agreement signed with your property owner or SDA provider.
A service agreement signed with your SIL care provider.
Having two distinct agreements protects your stability. If your support team is not working out, you can switch to a new service provider while remaining settled in your home.
Exploring Alternative NDIS Living Options
SIL and SDA are not the only options for setting up an independent living arrangement. Depending on your needs, other NDIS supports offer different ways to live:
Individualised Living Options (ILO): An alternative approach where you design a custom home setup. You might live with a host family, share a flat with an agreed housemate, or combine informal family support with targeted paid workers.
Medium Term Accommodation (MTA): Funding for temporary housing for up to 90 days. People use MTA when their permanent home is undergoing modifications or while waiting for an enrolled SDA build to be finished.
Short Term Accommodation: Short stays away from home, commonly used for respite. This funding covers accommodation, personal care, meals, and activities to give you and your regular carers a break.
Choosing the right option requires clinical evidence, such as a functional capacity assessment written by an occupational therapist, to show the NDIA what level of housing or care you require.
Frequently Asked Questions
What is the difference between SIL and SDA?
The main difference is that SIL pays for support workers who assist you with everyday routines, while SDA pays for the physical building modified with accessibility features. SIL covers the people, and SDA covers the property.
Can one provider deliver both my SIL and SDA?
Some organisations provide both services, but you have the legal right to choose different providers for each. Selecting separate providers prevents conflicts of interest and allows you to change care workers without affecting your tenancy.
Does SIL funding cover my weekly grocery shopping?
No. SIL funding does not pay for groceries, takeaway food, or personal shopping. SIL pays for the support worker who helps you plan meals, buy groceries, and cook in your kitchen.
How do I apply for SDA housing funding?
Applying for SDA requires an occupational therapist to complete a functional capacity assessment. The report must demonstrate that you have extreme functional impairment or very high support needs that standard community housing cannot accommodate.
Plan Your Home Living Supports with Confidence
Finding the right mix of accessible housing and daily personal care helps support your everyday independence. Our nurse-led team assists participants and families across Sydney with practical advice on home living options.
Talk with our team to discuss supported living options suited to your personal goals.
- Supported Independent Living
- Specialist Disability Accommodation
- NDIS Housing
Get Started
Not sure where to start?
Talk with our team about what you are looking for. We will explain what we can offer, with no obligation.

