SDA Design Categories: High Physical Support vs. Robust

Choosing the right home is a significant milestone in any NDIS journey. However, the technical language used to describe SDA Design Categories can often feel more like a building manual than a guide for families. At InPlace Living, we believe that understanding your housing options should be straightforward and person-centred.

High Physical Support (HPS) and Robust are two of the most common categories we develop, yet they serve very different needs. In short, High Physical Support is designed for those with significant physical challenges who require high-tech assistance and mobility space. Robust housing is built for participants with complex sensory or behavioural needs, focusing on durability, safety, and a calm environment to reduce stress.

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Why the Right Design Category Matters for Your Home

The design category of your SDA home shapes everything about how you live in it — from how you move through each room to the technology that supports your daily routine. Getting it right means your home works for you today and continues to meet your needs as you grow and achieve your goals.

Each category specifies the features your home must have, and SDA providers must build to these standards. That's your guarantee that the home is genuinely fit for purpose — not just accessible on paper.

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What is High Physical Support (HPS) Housing?

If you use a complex power wheelchair, need ceiling hoists, or require 24/7 care, a High Physical Support home is designed to give you the freedom to move through your day with comfort and dignity. Everything in the home is built around making your life easier.

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Key Features: Ceiling Hoists, Automation, and Accessibility

In an HPS home, your environment works for you. Key features include:

Structural Provision for Hoists: The ceilings are reinforced to support constant hoist use from the bedroom to the bathroom.
Assistive Technology: Voice or switch-controlled lights, doors, and blinds are standard, giving you control over your environment.
Emergency Power Backup: To ensure that life-sustaining equipment and elevators keep running during a power outage.
Extra Space: Wider doorways (950mm) and large turning circles in every room to accommodate large mobility aids.

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How do I qualify for High Physical Support SDA?

To qualify for High Physical Support, you generally need an NDIS assessment showing you require very high levels of person-to-person support and specialised technology, such as structural provisions for ceiling hoists and wide door clearances for complex wheelchair use.

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What is Robust SDA Housing?

Robust SDA housing across Victoria is designed to give you a calm, secure space where you feel safe and settled — built with resilient materials so nothing disrupts that feeling. This category prioritises creating an environment that supports your sensory and behavioural needs while still feeling like a real home.

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Key Features: Resilient Materials and Safety for High-Impact Needs

A Robust home is about peace of mind — a space where you feel secure, calm, and at ease. The design focuses on creating that feeling:

High-Impact Materials: We use reinforced walls, impact-resistant glass, and secure fittings that aren't easily broken.
Soundproofing: Extra insulation helps reduce noise from outside that might be overstimulating, and also ensures that any noise from inside doesn't disturb the neighbours.
Retreat Areas: A dedicated retreat space where a participant or support worker can go to have some quiet time and feel safe.
Trauma-Informed Design: While the home is strong, it doesn't look clinical. We use calming colours and layouts that feel private and secure.

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What is the difference between Robust and High Physical Support?

High Physical Support (HPS) focuses on significant physical impairment requiring ceiling hoists and home automation. Robust SDA is designed for participants with complex behavioural needs, featuring high-impact resistant materials and soundproofing to ensure safety for both the resident and the property.

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High Physical Support vs. Robust: Key Differences Compared

Feature	High Physical Support (HPS)	Robust Housing
Primary Need	Physical mobility and high care	Sensory and behavioural safety
Walls & Glass	Standard high-quality finish	Reinforced and impact-resistant
Technology	Advanced automation and hoists	Focus on safety and durability
Power	Emergency backup included	Usually standard (unless requested)
Space	Max turning circles for wheelchairs	Space for retreat and safe movement

Finding a Victoria SDA Provider: What to Look For

When you are looking for an SDA provider, it is important to find someone who understands the local Victorian landscape. At InPlace Living, we focus on "Boutique SDA"—meaning we build high-quality homes in established Melbourne suburbs where you are close to shops, transport, and community hubs.

Look for a provider that:

Values Partnership: They should work closely with your SIL (Supported Independent Living) provider to ensure your daily support team and your home's features complement each other.
Offers Transparency: They should clearly explain the residency agreement and your rights under Victorian law.
Prioritises Design: A good home shouldn't look like a facility. It should look like a place where you belong.

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How to Transition from Funding to Moving In

The move into SDA is a big step, but you don't have to do it alone. Once your SDA assessment criteria are met and funding is approved in your plan, the process usually looks like this:

Search and Visit: Look for vacancies in your preferred suburb and take a tour of the home.
Provider Collaboration: Your provider will work with your Support Coordinator to ensure the home is the right fit.
Dwelling Enrolment: The provider handles the technical side, enrolling the home with the NDIS.
Moving Day: We help coordinate with your support team to make sure your transition is as smooth as possible.

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Frequently Asked Questions about SDA Categories

What are the 4 categories of SDA?

The four SDA design categories are Improved Liveability, Robust, Fully Accessible, and High Physical Support. Each category specifies the physical requirements and features a home must have to support participants with different levels of functional impairment or high support needs.

Can a Robust home also be High Physical Support?

A home is typically enrolled under one primary SDA category. However, some properties may be designed to meet the requirements of more than one category. If your needs span multiple categories, speak with your provider about which option best supports your goals.

We understand that navigating these categories can be complex. If you would like to chat about whether a High Physical Support or Robust home is right for your journey, the InPlace Living team is here to help.

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