Specialist Disability Accommodation (SDA) Explained: Who Qualifies, the 4 Design Categories and What You Pay in 2026

Specialist Disability Accommodation (SDA) is a type of NDIS funding for housing that has been purpose-built or modified for people with an extreme functional impairment or very high support needs. The NDIS describes SDA dwellings as homes with accessible features that help residents live more independently, and that allow other supports to be delivered to them better or more safely.

An SDA home can be a house, an apartment, a villa, a duplex, a townhouse or a group home. The point of difference is the accessible design. Depending on the category, an SDA dwelling might include things like wide doorways, wheelchair-accessible kitchen sinks and benches, ceiling hoists, button-operated or automated doors, reinforced walls, a backup power supply, or home automation and communication technology.

It is important to understand what SDA does and does not pay for. SDA funding goes to the provider for the dwelling itself, the bricks and mortar. It is the only NDIS funding that provides the actual housing. It does not pay for the support workers who help you inside the home, and it does not pay your rent or your daily living costs.

SDA is not a general housing payment and only a small share of NDIS participants qualify. To have SDA funded in your plan, the NDIS says you must have an extreme functional impairment or very high support needs, meet the SDA needs requirement, and meet the NDIS funding criteria.

'Very high support needs' has a specific meaning here. The NDIS describes it as needing a lot of person-to-person support for a significant part of the day, with that support either physically with you or available to you straight away. An 'extreme functional impairment' relates to very significant difficulty with mobility, self-care or self-management.

Eligibility is decided on evidence. The NDIA looks at reports from your treating health professionals, often including an occupational therapist, about your support needs in the home and whether specialist housing is reasonable and necessary for you. Your evidence should be recent and from a relevant professional.

Because eligibility is assessed against detailed criteria and your individual circumstances, the only way to confirm whether you qualify is through the NDIA planning process. Talk to your planner, support coordinator or local area coordinator, and check the official eligibility guidance below.

SDA homes are classified by design category under the NDIS SDA Design Standard. Your plan will say which category you are funded for, and the home you choose generally needs to match. There are 4 current categories, plus 1 older 'Basic' category that some pre-existing homes fall under.

The categories, in the NDIS's own terms:

• Improved Liveability: housing designed for a reasonable level of physical access plus enhanced features for people with sensory, intellectual or cognitive impairment (for example, walls and floors that are very easy to see, or layouts where support workers can see you easily).
• Fully Accessible: housing with a high level of physical access for people with significant physical impairment (for example, if you use a wheelchair at home).
• Robust: housing built to be very strong and durable, designed to be resilient and to reduce the need for reactive repairs and maintenance, and to reduce risk to the resident and the community.
• High Physical Support: housing with a high level of physical access for people who need very high levels of support. It may include ceiling hoists, a backup power supply, and home automation and communication technology.
• Basic (legacy): an older category for existing SDA stock built before the current design standard, without the newer specialist features.

The right category for you is determined through your NDIS assessment and the evidence about your needs, not by personal preference alone.

This is the single most common point of confusion, so it is worth being precise. SDA and Supported Independent Living (SIL) are two different things and they are funded separately.

SDA is the housing. It pays the provider for the specialist dwelling you live in. SIL is the support. It funds the support workers who help you with daily tasks inside your home, such as personal care, cooking, cleaning, shopping, building routines and developing independence skills, which for some people is provided 24 hours a day, 7 days a week.

Many people who live in SDA also have SIL in their plan, but the two are not automatically linked. You can have SIL without SDA (support delivered in mainstream or other housing), and in some cases SDA without full SIL. As the NDIS puts it plainly: the SDA funding pays the SDA provider, the SIL funding pays for your carers, and you cover the rent and bills.

Even though the NDIS pays the provider for the dwelling, you still contribute toward living in it. Residents of SDA pay a Reasonable Rent Contribution to the SDA provider, and they cover day-to-day living costs such as electricity bills. Rent and ordinary living costs are not things the NDIS funds.

There is a legal cap on the rent. The most an SDA provider can charge you is the Maximum Reasonable Rent Contribution (MRRC), which for a single participant is set at 25% of the basic rate of the Disability Support Pension, plus 100% of any Commonwealth Rent Assistance you are eligible for. A provider cannot charge you more than the MRRC published in the NDIS SDA Pricing Arrangements.

Because the Disability Support Pension and Commonwealth Rent Assistance are indexed and change over time (typically each March and September), the actual dollar amount of your maximum rent contribution changes too. The amount should be written into your service agreement or a separate tenancy agreement, and you should confirm the current figures against the official pricing document rather than relying on an old number.

The amount the provider receives from the NDIS for the dwelling itself depends on the design category, building type, number of residents, location, and whether the home has On-site Overnight Assistance (OOA). These benchmark prices are set out in the SDA Pricing Arrangements and are reviewed each year.

SDA dwellings come in four building types, each with its own pricing and typical number of residents. The fewer people who share a home, the higher the per-resident SDA price tends to be, reflecting the cost of more individualised housing.

The NDIS building types are:

• Apartment: a self-contained unit within a larger residential building, typically priced for 1 to 3 bedrooms and 1 to 2 residents.
• Villa, duplex or townhouse: separate but semi-attached properties on a single or strata title, including stand-alone villas and granny flats, typically for 1 to 3 residents.
• House: a detached low-rise home with a garden or courtyard and fewer than 4 bedrooms, typically for 2 to 3 residents.
• Group home: a house with 4 or 5 bedrooms, for 4 to 5 residents. Older 'legacy stock' can have 6 or more residents.

Two details matter for cost. First, an On-site Overnight Assistance (OOA) room (a room for an overnight support worker) is not counted as a bedroom. Second, prices vary by location. The 2025-26 SDA Pricing Arrangements (version 2.0) took effect from 1 July 2025, with an updated SDA price calculator released on 14 October 2025. Because these are reviewed and indexed annually, always check the current pricing document for exact figures.

SDA is added to a participant's plan through the NDIA's planning and decision-making process, supported by evidence about your home and living needs. You can ask for home and living supports to be considered, and a treating professional such as an occupational therapist usually provides the supporting evidence.

A practical quirk to know about: if your new plan approves SDA but you have not yet found an enrolled home to move into, the NDIA may include a temporary $1 placeholder amount. This does not mean you only have $1 of SDA funding. It lets you use your plan as evidence to go and find a suitable enrolled SDA dwelling. Once you find and confirm one, you tell the NDIA and they update your plan to the correct SDA amount.

To find a vacancy, the NDIS runs an SDA Finder (vacancy finder) where you can filter by building type, design category, number of residents and price. Listings are updated weekly. You can also find homes through a referral from your support coordinator or recovery coach. The building type and location of the home you choose will usually need to align with what is funded in your plan, so check it meets your needs before signing any service or tenancy agreement.

SDA is a regulated NDIS support, which gives you protections. Every SDA provider must be registered with the NDIS Quality and Safeguards Commission under the SDA registration group. On top of that, each individual home must be enrolled with the NDIA as an SDA dwelling.

This matters because a provider cannot legally claim SDA payments for a home that is not enrolled. When you are looking at a property, it is reasonable to ask the provider to confirm both that they are registered with the NDIS Commission for SDA and that the specific dwelling is enrolled in the right design category and building type.

Your tenancy is also protected. The rent you pay is capped at the Maximum Reasonable Rent Contribution, and the agreed amount must be documented in your service agreement or a separate tenancy agreement. If you have concerns about an SDA provider or a dwelling, the NDIS Quality and Safeguards Commission is the body that handles provider registration and complaints. As an independent comparison site, we are not affiliated with the NDIA or the NDIS Commission, so always verify a provider's registration directly with the Commission.