DDA, Premises Standards and NCC: What’s the Difference?

The Disability Discrimination Act, the Premises Standards and the National Construction Code all influence building accessibility in Australia, but they are not interchangeable. The DDA is federal anti-discrimination legislation. The Premises Standards are disability standards made under that Act for specified building matters. The NCC provides technical construction requirements that are adopted and administered through state and territory building systems.

Confusing these instruments can lead to risky assumptions, such as treating a building approval as a complete answer to every disability-access obligation or describing a project simply as “DDA compliant”. A better approach is to identify the legal, regulatory and technical questions separately, then coordinate them for the particular building and scope of work.

This guide explains the practical relationship between the DDA, Premises Standards, NCC and referenced Australian Standards. It is general information only and does not replace project-specific legal, building surveying or access-consulting advice.

The short answer

• Disability Discrimination Act 1992 (DDA): Commonwealth legislation that makes disability discrimination unlawful in specified areas of public life, including access to premises and the provision of goods, services and facilities.
• Premises Standards: Federal disability standards under the DDA that set requirements for access to specified buildings and parts of buildings, using an Access Code.
• National Construction Code (NCC): A nationally developed technical code given legal effect through state and territory building legislation, with accessibility provisions for relevant building classifications and work.
• Australian Standards: Technical documents that become relevant when legislation, the NCC, the Premises Standards, a contract, specification or other instrument calls them up.

These layers overlap, but each has a different purpose and scope. A project team should avoid assuming that one instrument automatically answers every question raised by the others.

What is the Disability Discrimination Act?

The Disability Discrimination Act 1992 is Commonwealth legislation. Its objects include eliminating, as far as possible, discrimination against people on the ground of disability in specified areas and promoting recognition that people with disability have the same fundamental rights as the rest of the community.

For the built environment, two provisions are frequently relevant:

• section 23 addresses access to premises that the public or a section of the public is entitled or allowed to enter or use; and
• section 24 addresses discrimination in the provision of goods, services and facilities.

The DDA is broader than a drawing checklist. It operates as anti-discrimination legislation and may be relevant to how premises and services are actually made available and managed. The Act also contains concepts, exceptions and processes that require careful application to the facts.

That is one reason the phrase “DDA compliant” can be misleading. It may not identify what was assessed, which provisions were considered, whether the assessment concerned proposed building work or an existing operation, or what limitations applied.

What are the Premises Standards?

The Disability (Access to Premises — Buildings) Standards 2010 are disability standards authorised by the DDA. They commenced on 1 May 2011 and establish access requirements for specified buildings and building work.

The Standards define their scope by addressing:

• the buildings to which they apply;
• the people who have responsibilities under them;
• the actions to which they apply;
• requirements for compliance with the Access Code; and
• specified exceptions, concessions and exemption processes.

Part 3 states that relevant building certifiers, developers and managers must ensure that covered buildings comply with the Access Code to the extent required by the Standards. The detailed application depends on matters such as the type of building, whether work is for a new or existing building, the extent of the work and the roles of the people involved.

Why were the Premises Standards introduced?

The Premises Standards provide a nationally consistent technical framework for specified building-access matters under the DDA. They were developed alongside changes to the Building Code of Australia so that the federal access requirements and building-control requirements would be substantially aligned.

That alignment is important, but it should not be overstated. The DDA may raise issues beyond the construction requirements covered by the Premises Standards, including the way services and facilities are provided. Likewise, a building project still has to satisfy the building legislation and approval processes applying in its state or territory.

What is the National Construction Code?

The NCC is produced by the Australian Building Codes Board and adopted through state and territory legislation. It sets technical requirements for building and plumbing work within its scope.

For Class 2 to 9 buildings, NCC Volume One includes accessibility requirements. The Part D4 introduction explains that its Deemed-to-Satisfy provisions cover matters including:

• which buildings and parts of buildings must be accessible;
• accessible carparking spaces;
• braille and tactile signage;
• hearing augmentation;
• tactile ground surface indicators;
• seating in assembly buildings; and
• access to certain swimming pools.

Other NCC parts address relevant matters such as lift installations, sanitary facilities and accessible adult change facilities. The applicable NCC edition, state or territory variations, building classification and approval pathway must be confirmed for each project.

Deemed-to-Satisfy and Performance Solutions

The NCC permits different compliance pathways. A design may use Deemed-to-Satisfy provisions, a Performance Solution, or an appropriate combination, subject to the NCC assessment process and local approval requirements.

A Performance Solution is not an exemption from accessibility. It must demonstrate compliance with the relevant Performance Requirements using the permitted assessment methods. The design team should define the issue, stakeholders, evidence and acceptance criteria early rather than attempting to justify a completed design after the available options have narrowed.

ASN provides accessibility Performance Solution reports where a project requires an alternative approach to a Deemed-to-Satisfy provision.

Where do Australian Standards fit?

Australian Standards are technical documents published by Standards Australia. They do not all automatically have legal force merely because they exist. Their relevance depends on whether they are referenced by the NCC, Premises Standards, legislation, an approval, contract, specification or another applicable instrument.

Accessibility projects commonly encounter standards in the AS 1428 series and other referenced documents dealing with matters such as parking, lifts, tactile indicators, hearing augmentation or wayfinding. The exact edition matters. A project team should confirm the edition called up by the applicable NCC or instrument rather than assuming the newest publication automatically applies.

How the four layers work together

Consider a proposed alteration to a public-facing commercial building. The project may involve several related questions:

1. DDA question: Could the way people access or use the premises or services involve disability discrimination?
2. Premises Standards question: Do the proposed works trigger requirements for a new part, affected part or other covered building work, and who has responsibilities?
3. NCC question: What accessibility Performance Requirements and Deemed-to-Satisfy provisions apply under the adopted building-control framework?
4. Australian Standards question: Which referenced technical documents and editions form part of the selected compliance pathway?
5. Operational question: Will the completed building, management practices and service arrangements work for the people expected to use them?

The answers are connected but not identical. An access consultant, building surveyor, architect and legal adviser may each have a different role. Clear scopes and documented assumptions reduce the risk of advice being used for a purpose it was not intended to serve.

Does a building permit mean the premises are fully DDA compliant?

It is unsafe to treat a building permit or occupancy approval as a universal declaration of “DDA compliance”. A building approval addresses the requirements and scope administered through the relevant building-control process. The DDA is federal anti-discrimination legislation and may apply to matters beyond the approved construction documents.

The Premises Standards create an important relationship between covered building work and the DDA. Acting in accordance with applicable disability standards has legal significance under the Act. However, the conclusion for a particular building, person or activity depends on the facts and should not be reduced to a marketing label.

Project documents should say precisely what was reviewed. For example:

• desktop review of nominated drawings against identified NCC Deemed-to-Satisfy provisions;
• onsite audit of specified areas against agreed criteria;
• Performance Solution assessment addressing nominated Performance Requirements; or
• general accessibility advice for an operational improvement plan.

Precise language is more useful than an unsupported statement that a whole property is “compliant”.

What about existing buildings?

The age of a building does not, by itself, answer every access question. The Premises Standards contain specific scope rules for existing buildings and building work, including concepts such as new parts and affected parts. State and territory building legislation may also determine when upgrades are required as part of alterations, changes of use or other work.

Separately, the DDA can be relevant to access to premises and services. Existing-building owners and managers should therefore distinguish between:

• mandatory requirements triggered by proposed building work;
• the existing condition of the premises;
• operational access barriers;
• reasonable adjustment and service-delivery questions requiring appropriate advice; and
• voluntary accessibility improvements and asset-planning priorities.

An onsite accessibility audit can document current barriers, while a desktop access audit can review proposed drawings before work is committed.

Common mistakes to avoid

Using “DDA” as shorthand for every technical requirement

The DDA, Premises Standards, NCC and Australian Standards should be named accurately. This makes the basis and limitations of advice clearer.

Assuming an Australian Standard applies in isolation

Confirm why the document applies, which edition is referenced and how it fits the selected compliance pathway.

Leaving access coordination until the end

Accessibility affects site planning, structure, services, landscape, interiors and product selection. Early review generally provides more design options.

Treating a Performance Solution as a waiver

A Performance Solution must demonstrate compliance with the relevant Performance Requirements. It needs evidence, assessment and appropriate stakeholder input.

Ignoring operation and maintenance

A technically suitable route can become unusable through storage, furniture, locked doors, failed equipment or poor maintenance. Building management remains important after construction.

A practical approach for project teams

1. Confirm the building classification, jurisdiction, project scope and applicable NCC edition.
2. Identify whether the Premises Standards apply to the proposed work and which people have defined responsibilities.
3. Document the NCC compliance pathway, including any proposed Performance Solutions.
4. Confirm the referenced Australian Standards and editions.
5. Review drawings early and again before approval, tender or construction.
6. Inspect relevant completed work where the project scope requires verification.
7. Separate building-control conclusions from broader DDA, service or operational advice.

ASN provides disability access consulting, design reviews, access audits and Performance Solution reports for projects across Melbourne, Victoria and Australia. To discuss the appropriate scope for your project, request a quote or contact ASN.