SDA certification

About Us

SDA Building Approval is a specialist consultancy providing end-to-end building approval, SDA assessment, and accessibility compliance services across Australia.

The company is led by Amit Chopra, a highly experienced and qualified professional with expertise spanning building regulation, accessibility, and Specialist Disability Accommodation (SDA). With a strong understanding of both statutory requirements and NDIS frameworks, we support designers, builders, developers, and SDA providers in delivering compliant, practical, and high-quality outcomes.

Our focus is on clear advice, timely approvals, and risk-managed solutions, ensuring projects move forward with confidence.

Intro — What SDA Is

Specialist Disability Accommodation (SDA) is a housing support funded through the National Disability Insurance Scheme (NDIS) for participants with extreme functional impairment or very high support needs, designed to enable safe, accessible, and supportive living environments. SDA focuses on the physical dwelling, not support services, and must meet specific design and compliance requirements under NDIS rules. NDIS

Learn more from the official NDIS SDA page:
🔗 NDIS – Specialist Disability Accommodation (https://www.ndis.gov.au/providers/housing-and-living-supports-and-services/specialist-disability-accommodation) NDIS

What We Do — SDA Design Certification

At SDA Building Approval, we provide independent SDA design and as-built certification in accordance with the NDIS Specialist Disability Accommodation Design Standard, ensuring your dwelling is compliant before you lodge for enrolment with the NDIA.

NDIS requires third-party certification for New Build SDA and New Build (Refurbishment) dwellings seeking SDA enrolment. The certification must be issued by an Accredited SDA Assessor and demonstrates compliance with the design category nominated by the provider. NDIS

This certification is a critical compliance step in the SDA dwelling enrolment process — but it does not guarantee enrolment, which is decided by the NDIA based on all requirements under the SDA Rules. NDIS

Find official assessor information here:
🔗 NDIS – Find an Accredited SDA Assessor (https://www.ndis.gov.au/providers/housing-and-living-supports-and-services/specialist-disability-accommodation/sda-design-standard/find-accredited-sda-assessor) NDIS

SDA Design Categories – Explained

Under the NDIS SDA Design Standard, newly built SDA dwellings must meet one of four design categories. Each category has specific criteria to address different participant needs: NDIS+1

🧩 Improved Liveability

  • Designed for participants with sensory, intellectual or cognitive impairments.
  • Provides reasonable physical access and features such as improved wayfinding, lighting, sightlines, and ease of use.
  • Supports safer, more independent living with accessible internal layouts. Our Guidelines

🦽 Fully Accessible

  • A higher level of physical access for people with significant mobility challenges.
  • Includes features to support wheelchair access throughout the dwelling, step-free circulation, and accessible wet areas.
  • Suited to participants with limited physical mobility. Our Guidelines

🛡 Robust

  • Combines strong accessibility with durable construction to withstand heavy use.
  • Designed for participants who may exhibit complex or challenging behaviours and need a resilient environment.
  • Emphasises durability of materials and fixtures to reduce reactive maintenance. Life Without Barriers

🏗 High Physical Support

  • For participants requiring very high levels of physical support.
  • Includes all features of Fully Accessible, plus structural allowances for assistive technologies (e.g., ceiling hoists), emergency power solutions, and enhanced communication systems. Our Guidelines

Officially recognised design categories per the NDIS SDA Rules and Design Standard. NDIS

Why SDA Certification Matters

SDA design certification ensures the living environment effectively supports participants’ functional and safety needs. It also:

  • Provides confidence to SDA providers that dwellings comply with current standards
  • Demonstrates compliance against NDIS requirements for design quality
  • Forms part of evidence required in lodging an SDA dwelling enrolment application with the NDIA NDIS

How Our SDA Certification Works

We undertake:

  1. Design Stage Assessment
    • Review architectural and technical documentation
    • Certify compliance with nominated design category requirements
  2. Final (As-Built) Assessment
    • Inspect completed works
    • Confirm built outcomes align with certified design standard
  3. Certification Report
    • Provide a detailed, NDIA-ready assessment report signed by an Accredited SDA Assessor
    • Assist with clarification or revisions if required
  4. Support Through Enrolment
    • Advice on SDA documentation
    • Clarifications on compliance requirements

Key SDA Links (Official NDIS)

For further detail straight from the source: