Can Existing Buildings Be Exempt From Access Rules?

Sydney Access Consultants · Updated November 2026

A 1970s office building is being converted into a medical practice. Its entry has steps, corridors are narrow and the sanitary facilities are undersized. The first question often asked is: can existing buildings be exempt from current access requirements? The answer is rarely a simple yes or no. In Australia, the outcome depends on the proposed work, the approval pathway, the building’s classification, state or territory legislation, heritage controls and the continuing obligations that apply under discrimination law.

Treating an existing building as automatically exempt can expose owners, designers and operators to approval delays, expensive late redesign and avoidable access complaints. Equally, assuming every element must be rebuilt to the latest Deemed-to-Satisfy provision can produce unnecessary cost where a carefully developed performance solution or staged upgrade would achieve a compliant, equitable and buildable result.

Can existing buildings be exempt from current access requirements?

Existing buildings are not generally required to be upgraded in full simply because the National Construction Code (NCC) changes. The NCC is principally applied through building approval and construction processes. Where no building work, change of use or regulatory trigger is proposed, an older building may remain as built, subject to any applicable state, territory or local government requirements.

That is not the same as an exemption from accessibility responsibilities. The Disability Discrimination Act 1992 (DDA) applies broadly to the provision of goods, services, facilities, accommodation, employment and education. A building owner or operator may face a discrimination complaint even where the building has not undergone works requiring an NCC upgrade. Compliance with a building approval does not automatically remove DDA risk.

When a project is proposed, the building surveyor, certifier or relevant authority will consider what provisions apply to the scope of work. A new addition will ordinarily need to comply with current requirements. Alterations may trigger upgrades to the affected part of the building and, depending on the jurisdiction and circumstances, access to and from that area. A material change of use can also be significant because the building may move into a different NCC classification with different access obligations.

The key distinction is between an existing condition that has not been disturbed and a project that changes how a building is used, occupied or accessed. The extent of required upgrading is a technical assessment, not a rule of thumb based on the age of the building.

The compliance triggers that change the answer

A modest refurbishment can have wider access implications than its footprint suggests. Replacing finishes is different from reconfiguring a reception area, converting storage to consulting rooms or introducing a new public tenancy. The latter can change circulation, service counters, sanitary provision, paths of travel and egress arrangements.

Building work and affected areas

Access upgrades are often assessed in relation to the new work and the areas it serves. If a new accessible consulting room is created on a level reached only by stairs, the question is not limited to the fit-out inside the room. The path from the site arrival point, parking, entry and common circulation may all need review.

This does not mean every untouched part of a large asset must always be upgraded. The appropriate extent of work must be established against the project’s approval conditions and applicable legislation. Early advice helps define a scope that addresses real obligations before drawings and budgets become fixed.

Change of use or building classification

A warehouse converted to a gym, an office becoming a childcare centre, or a house adapted for commercial consulting can create substantially different public-access expectations. Change-of-use proposals may prompt review of accessible entries, passenger lifts, door clearances, accessible sanitary facilities, wayfinding, hearing augmentation and accessible parking.

Use matters because it shapes who is expected to attend, how independently they can use the premises and what services are being offered. A solution suitable for a back-of-house industrial area may not be adequate for a public-facing education, health or retail setting.

Tenancy works in shared buildings

A tenant may only control its suite, while the inaccessible entry, lift or common corridor is controlled by the owners corporation or building owner. This split responsibility is common, but it does not make the issue disappear. Leasing, fit-out and approval decisions should identify where barriers sit and who can authorise or fund remedial work.

For operators, this is a commercial issue as well as a compliance issue. An otherwise well-designed tenancy can still exclude customers, staff or visitors if the building’s common path of travel cannot be used independently.

Heritage, geometry and disproportionate impacts

Heritage significance, steep sites, constrained structures and small floorplates can make standard access solutions difficult. They do not create a blanket exemption. Instead, they call for a more rigorous process that identifies the barrier, tests feasible options and documents why a particular response is appropriate.

For a heritage entry, options may include a sensitively located ramp, a platform lift, regrading external paths, relocating the principal entry function, or improving an alternative entrance that is genuinely equivalent in operation. An inaccessible side door through a service yard is rarely an equitable substitute for a formal public entry.

There are trade-offs. A lift may improve independent access but require major structural intervention. A ramp may preserve independence but consume valuable floor area or exceed practical gradients. A performance-based approach may be possible where strict Deemed-to-Satisfy compliance is impracticable, but it must demonstrate that the proposal meets the relevant performance requirements. It is not a shortcut or a retrospective justification for poor design.

Cost is also assessed in context. Financial impact may be relevant to some legal tests, but inconvenience or a preference to retain lettable area will not, by itself, establish that no improvement is required. A staged programme can sometimes be a sensible way to address substantial barriers while aligning works with planned asset renewal.

Why DDA considerations remain after approval

The DDA does not prescribe a single approval checklist for every existing building. Its focus is whether a person with disability is treated less favourably, or whether a requirement has an unjustifiable adverse effect. The Disability (Access to Premises — Buildings) Standards 2010 interact with building regulation for certain premises and can provide protection in defined circumstances, but they do not remove the need for careful project-specific advice.

Owners and operators should therefore consider more than the minimum approval trigger. Can a visitor locate and use the entrance without assistance? Can a wheelchair user reach the service point, meeting room or bathroom? Can a person with low vision navigate hazards and signage? Can a person who is Deaf or hard of hearing participate in a public-facing service?

These questions are especially relevant for facilities that serve the public, including education, aged care, health, retail, government and community assets. They are also relevant to workplaces, where access barriers can restrict recruitment, retention and reasonable workplace adjustments.

A practical process for existing-building projects

The most effective time to resolve access issues is before the concept design is locked in. An access audit or targeted plan assessment can establish the existing conditions, identify likely approval and DDA risks, and distinguish essential works from worthwhile future improvements.

A sound assessment starts with site arrival. It follows the complete user journey through parking or drop-off, external paths, entries, reception, horizontal and vertical circulation, amenities, key rooms, emergency information and departure. It should also consider management measures, because an operational policy can support good access but cannot reliably compensate for a physical barrier that should have been removed.

The resulting advice should be coordinated with the architect, building surveyor or certifier, structural and services consultants, heritage adviser and project manager. This coordination is particularly valuable when competing requirements arise, such as fire safety, flood protection, acoustic separation, security or conservation controls.

For complex refurbishments, document decisions clearly. Record the existing condition, relevant NCC provisions, proposed works, constraints considered, options tested and agreed pathway. This provides a defensible basis for approvals, tender pricing and future asset planning. It also prevents a familiar project problem: discovering an inaccessible threshold or missing accessible sanitary facility after construction has begun.

Access upgrades should support the asset, not just the approval

The best upgrade pathway is not always the largest or most expensive intervention. It is the one that gives people dignified, independent and safe access while responding to the project’s legal obligations, physical constraints and long-term operation. Sometimes that means full compliance with current Deemed-to-Satisfy provisions. Sometimes it means a well-supported performance solution, a carefully sequenced upgrade plan, or a redesign that removes the barrier more simply.

Existing buildings carry constraints, but they also present opportunities to improve participation without erasing architectural character or commercial value. Before relying on an assumed exemption, obtain specialist access advice that tests the project trigger, the user journey and the practical options. Early, evidence-based decisions give project teams the strongest foundation for equitable outcomes that can be approved and built.