What Do I Need for the SDA Design Stage Assessment?
- Nikki Civitarese
- 6 days ago
- 2 min read

For anyone developing Specialist Disability Accommodation (SDA), understanding what’s required for the Design Stage Assessment is essential. This stage sets the foundation for compliance with the NDIS SDA Design Standards and ensures your project stays on track for a smooth certification process. Whether you’re a builder, provider, or developer, being prepared can save time, reduce costs, and prevent delays.
What is the SDA Design Stage Assessment?
The SDA Design Stage Assessment is conducted by an accredited SDA Assessor to verify that the proposed dwelling complies with the NDIS SDA Design Standard before construction.
The assessor evaluates:
Accessibility and usability features
Layout and circulation spaces
Alignment with the target SDA design category (Improved Liveability, Fully Accessible, Robust, or High Physical Support)
Integration of assistive technology
The SDA Design Stage certification gives more certainty to owners, developers, and builders that what they build will meet the minimum requirements in the SDA Design Standard for the nominated design categories.
Key Documents Needed for Assessment
To ensure a smooth assessment, prepare the following:
Architectural Plans
Floor plans, elevations, and sections
Room dimensions and circulation areas
Accessible bathrooms, doorways, and hallways
Internal elevations showing SDA features
Design Specifications
Materials, finishes, and fixtures
Appliances and fittings to be installed
Assistive technology and structural elements relevant to SDA compliance
Site Plans
Orientation, access points, and outdoor spaces
Parking and drop-off zones
Detailed gradient plans clearly showing the accessway to the dwelling and pathways around the dwelling
Design Category Proposal
Identify your target SDA category
Include design solutions demonstrating compliance
Supporting Documentation
SDA Provider details and site density statement
Compliance checklists
Engineering or building reports
Any prior assessments or approvals
Tips for a Smooth Assessment
Engage Early: Collaborate with your SDA Assessor during the design phase.
Review SDA Standards: Ensure plans comply with the relevant design category.
Provide Complete Plans: Incomplete documentation can delay approval.
Coordinate Your Team: Align your architect, builder, and access consultant with SDA requirements.
Why Preparation Matters
Being well-prepared helps you:
Avoid costly redesigns or non-compliance issues
Ensure alignment with the NDIS SDA Design Standards
Streamline the process to obtain Provisional and Final SDA Design Certification
Deliver safe, functional, and accessible housing for residents
Proper preparation sets the foundation for a successful SDA project and a smooth path to certification.
Partner with Complete Access Partners
At Complete Access Partners, we guide builders, providers, and developers through every SDA project stage. Our accredited SDA Assessors can:
Review your design and site plans for NDIS compliance
Advise on achieving your target SDA design category
Issue Provisional SDA Design Certificates to keep your project on track
We help ensure your SDA project meets regulatory requirements while delivering safe, accessible, and high-quality homes.
Contact Complete Access Partners today to discuss your SDA Design Stage Assessment and set your project up for success.




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