SDA vs SIL: What Each One Actually Pays For
SDA vs SIL made simple: SDA pays for the specialist building, SIL pays for the daily support inside it. How they differ, and how they work together.
SDA and SIL are two of the most confused terms in NDIS housing, and mixing them up can derail a funding request. The simplest way to remember them is this: SDA pays for the home, and SIL pays for the help inside it. This guide unpacks what each one actually covers, why they come from different budgets, and how they fit together.
The one-line difference
What SDA pays for
What SIL pays for
Why they come from different budgets
How they work together
Can you have one without the other?
A quick worked example
Where this fits in the bigger picture
Frequently asked questions
What is the difference between SDA and SIL?
SDA (Specialist Disability Accommodation) pays for the specialist building you live in. SIL (Supported Independent Living) pays for the workers who support you inside it. SDA is the home; SIL is the help. They are funded from different budgets and assessed separately.
Can I get SDA and SIL at the same time?
Yes. People with very high needs often have both — a specialist home funded through SDA and a daily support roster funded through SIL. They still count as two separate supports, decided and reviewed independently, so you may be approved for one before the other.
Does SDA pay for my support workers?
No. SDA only pays towards the cost of the specialist building. Your support workers are funded separately, usually through SIL or another support type. Asking SDA to cover workers is a common mistake that leads to confused or rejected requests.
Do I pay rent if I live in SDA?
Yes. SDA covers the extra cost of the specialist building, but you still contribute a reasonable rent — often called the Reasonable Rent Contribution — usually from your income and any Commonwealth Rent Assistance, because everyone pays something to live somewhere.
Related guides
- Building or Buying Your Own SDA Home
- New, Existing and Legacy SDA Stock Explained
- SDA Building Types: Apartment, Villa, House, Group Home
- SDA Design Categories Explained: All Four, in Plain English
- SDA Eligibility: Who Qualifies for Specialist Disability Accommodation
- SDA Fully Accessible Design Explained