Carpark Line Marking Rules in Australia - What AS/NZS 2890 Actually Requires

A strata manager in Cheltenham called us after receiving a council compliance notice. The carpark had been remarked six months earlier by another contractor. Bay widths were 2.3 metres. The Australian Standard requires 2.4 metres minimum for a 90-degree angle park. The accessible bays were 2.4 metres wide - they need to be 3.2 metres. Every bay in the carpark was non-compliant. The previous contractor had simply painted over the old lines without checking a single dimension.

This is not unusual. Carpark line marking in Australia is governed by specific Australian Standards - AS/NZS 2890.1 for general off-street parking and AS/NZS 2890.6 for accessible parking. Councils enforce these standards through development approvals, compliance audits, and complaint investigations. The Disability Discrimination Act 1992 (DDA) adds a federal legal layer for accessible parking requirements. Getting it wrong exposes property owners and facility managers to fines, legal action, and costly rework.

This guide covers exactly what the standards require, what councils enforce state by state, the accessible parking rules that most people get wrong, and what a compliant job actually looks like on the ground.

The Two Standards You Need to Know

AS/NZS 2890.1 - Off-Street Car Parking

AS/NZS 2890.1 is the primary Australian Standard for off-street parking facilities. It covers the design and layout of carparks including bay dimensions, aisle widths, ramp grades, circulation patterns, and line marking requirements. This standard applies to all off-street carparks - commercial, retail, residential, and industrial.

The standard is referenced in the National Construction Code (NCC) and is adopted by every local council in Australia as a condition of development approval. When a council approves a development with parking, the carpark must comply with AS/NZS 2890.1. When a council audits an existing carpark, AS/NZS 2890.1 is the benchmark they measure against.

AS/NZS 2890.6 - Off-Street Parking for People with Disabilities

AS/NZS 2890.6:2009 specifically covers accessible parking design and marking requirements. This standard specifies wider bay dimensions, shared access zones, signage requirements, surface gradients, and the connection between accessible bays and accessible paths of travel. It works in conjunction with the Disability Discrimination Act 1992 (DDA) and the National Construction Code (NCC) published by the Australian Building Codes Board.

Complete Compliance Dimensions Table

Element	Minimum Dimension	Standard	Notes
Standard bay width (90-degree)	2.4m	AS/NZS 2890.1	Measured between centre lines. 2.5m where adjacent to walls or columns.
Standard bay length	5.4m	AS/NZS 2890.1	Can reduce to 4.8m with front overhang provision.
Aisle width (90-degree, two-way)	6.2m	AS/NZS 2890.1	Varies by parking angle. 6.2m for 90-degree two-way.
Aisle width (90-degree, one-way)	5.8m	AS/NZS 2890.1	One-way traffic only.
Accessible bay width	3.2m	AS/NZS 2890.6	Wider than standard to allow wheelchair transfer.
Accessible shared zone width	2.4m	AS/NZS 2890.6	Shared zone between two accessible bays. Can serve two adjacent bays.
Accessible bay length	5.4m	AS/NZS 2890.6	Same as standard bays.
Line marking width	75mm minimum	AS/NZS 2890.1	80-100mm is standard practice for visibility.
Wheel stop setback	600mm from bay end	AS/NZS 2890.1	Prevents vehicle overhang into pedestrian paths.
Accessible parking signage height	Minimum 2.0m clearance	AS/NZS 2890.6	Post-mounted sign plus international symbol of access on bay surface.

Accessible Parking - Where Most Carparks Fail

Accessible parking is the area where the most compliance failures occur. The requirements under AS/NZS 2890.6 and the DDA are more specific than most property owners realise, and the consequences of getting them wrong are more serious.

Bay Dimensions

An accessible parking bay must be a minimum of 3.2 metres wide. This is 800mm wider than a standard bay and the extra width is essential for wheelchair transfer. A person using a wheelchair needs space to fully open the vehicle door and deploy a wheelchair beside the vehicle. A 2.4 metre standard bay does not provide this space.

Adjacent accessible bays can share a 2.4 metre wide shared access zone between them. This zone must be clearly marked with hatching (typically diagonal white lines on a blue or white background) and must connect to an accessible path of travel to the building entrance.

Shared Zone Requirements

The shared zone is not just a painted area. It must be:

• A minimum of 2.4 metres wide
• The full length of the adjacent bays (5.4 metres minimum)
• Clearly marked with diagonal hatching to indicate no-parking
• Connected to a kerb ramp or level transition to the accessible path of travel
• Free of any obstructions including bollards, signage posts, garden beds, or drainage grates that would impede wheelchair access

Signage

Each accessible bay requires a post-mounted sign displaying the International Symbol of Access (ISA). The sign must be visible from the approach direction and mounted at a minimum height of 2.0 metres to avoid obstruction. The ISA must also be marked on the bay surface itself - either painted or thermoplastic applied.

Surface Gradient

Accessible bays and their shared zones must have a maximum surface gradient of 1:40 (2.5%) in any direction. This is often overlooked in carparks built on sloping sites. A bay that meets dimensional requirements but exceeds the gradient limit is non-compliant under AS/NZS 2890.6.

How Many Accessible Bays Are Required?

The number of accessible parking bays required depends on the total number of parking spaces and the type of development. The NCC and the Disability (Access to Premises - Buildings) Standards 2010 specify the minimum requirements.

As a general guide, the NCC requires a minimum of 1 accessible bay for the first 20 car parking spaces, then 1 additional accessible bay for every additional 30 spaces. However, the DDA can impose additional requirements based on the type of facility and the needs of the people using it. Medical facilities, aged care, hospitals, and government buildings typically require more accessible bays than the NCC minimum.

The Australian Human Rights Commission can investigate complaints about inadequate accessible parking under the DDA. A successful DDA complaint can result in orders requiring the property owner to bring the facility into compliance at their own cost, plus potential compensation to the complainant.

State-by-State Council Enforcement

State/Territory	Enforcement Authority	Typical Enforcement Actions
New South Wales	Local councils, certifying authorities	Compliance notices, development condition enforcement, fines for misuse of accessible spaces (up to $2,200)
Victoria	Local councils, VBA	Building notices, compliance audits, infringement notices. Municipal Building Surveyors can issue building orders for non-compliant carparks.
Queensland	Local councils, QBCC	Show cause notices, compliance directions. Councils can issue fines for non-compliant development conditions.
Western Australia	Local councils, Building Commissioner	Building orders, compliance notices. WA councils actively audit carpark compliance in commercial precincts.
South Australia	Local councils, SA Planning Commission	Section 69 notices, compliance orders. Council can require rectification of non-compliant carpark markings.
Tasmania	Local councils, Director of Building Control	Building orders, compliance notices. Smaller market but councils still enforce AS/NZS 2890 through DA conditions.
ACT	ACTPLA, Access Canberra	Compliance notices, rectification orders. Government and institutional carparks are closely monitored.
Northern Territory	Local councils, NT Building Advisory Services	Compliance directions, building notices. Remote and regional areas may have less frequent enforcement.

Common Compliance Failures We See

These are the seven most common carpark line marking compliance failures we encounter across Australian carparks. Most are avoidable with proper measurement and standard knowledge before the job starts.

1. Bay widths under 2.4 metres. The single most common failure. Contractors who remark over existing lines without measuring often reproduce the original non-compliant dimensions. Every bay must be measured and confirmed before marking.

2. Accessible bays at standard width (2.4m instead of 3.2m). A standard-width bay with an accessible parking sign does not create a compliant accessible bay. The bay itself must be 3.2 metres wide, and the shared zone must be 2.4 metres wide.

3. No shared access zone between accessible bays. Two accessible bays side by side without a marked shared zone between them fail AS/NZS 2890.6. The shared zone is what allows wheelchair access between vehicles.

4. Missing or incorrect ISA marking on bay surface. The International Symbol of Access must be marked on the bay surface, not just on a sign. The symbol must meet the dimensional requirements in the standard and be clearly visible.

5. Aisle widths too narrow for the parking angle. 90-degree parking requires wider aisles than angled parking. Aisles that are too narrow for the parking angle make it impossible for vehicles to enter and exit bays safely, and fail AS/NZS 2890.1.

6. No connection between accessible bays and accessible path of travel. An accessible bay that does not connect to a kerb ramp or level path leading to the building entrance is non-compliant, regardless of the bay dimensions being correct.

7. Faded or illegible markings. Markings that have worn to the point where bay lines, aisle markings, and directional arrows are no longer clearly visible are a compliance issue. Councils can and do issue notices requiring remarking of faded carparks.

What a Compliant Job Looks Like

A compliant carpark line marking job from our team includes:

• Pre-job measurement and layout review. Every bay, aisle, and accessible space is measured and confirmed against AS/NZS 2890.1 and 2890.6 before marking begins. If existing dimensions are non-compliant, we advise on layout adjustments before any marking is applied.
• Removal of non-compliant existing markings. Old lines that do not match the new compliant layout are removed by grinding or water blasting to prevent confusion. Ghost lines from old markings are a common source of driver confusion and audit findings.
• Marking to standard dimensions. All bays, aisles, accessible spaces, shared zones, arrows, symbols, and text markings applied to the dimensions specified in AS/NZS 2890.1 and 2890.6.
• Correct accessible bay treatment. 3.2m wide bays, 2.4m shared zones with hatching, surface-applied ISA symbols, connection to accessible path of travel confirmed.
• Completion documentation. Photos, dimension verification, and a compliance summary document that confirms the carpark meets current Australian Standards. This document is what you provide to council if compliance is queried.

Every carpark we mark receives this level of documentation. It is the evidence that protects the property owner if a council audit or DDA complaint arises in the future.

Frequently Asked Questions

What width must standard parking bays be in Australia?

Under AS/NZS 2890.1, standard 90-degree parking bays must be a minimum of 2.4 metres wide measured between centre lines. Where the bay is adjacent to a wall, column, or other obstruction, the width increases to 2.5 metres to allow door opening clearance. Bay length is a minimum of 5.4 metres, which can be reduced to 4.8 metres where a front overhang provision is made.

How wide must accessible parking bays be?

Under AS/NZS 2890.6:2009, accessible parking bays must be a minimum of 3.2 metres wide. Adjacent accessible bays share a 2.4 metre wide access zone between them. The bay must connect to an accessible path of travel to the building entrance via a kerb ramp or level transition.

Can a council fine me for non-compliant carpark line marking?

Yes. Councils enforce carpark standards through development approval conditions and building compliance processes. Non-compliant carparks can receive compliance notices requiring rectification within a specified timeframe. Fines vary by state and council. Accessible parking non-compliance can also be the subject of a DDA complaint to the Australian Human Rights Commission, which can result in orders for rectification and compensation.

How often should carpark lines be repainted?

Carpark lines should be repainted when they are no longer clearly visible and legible. For most external carparks in Australian conditions, this is typically every 3-6 years depending on traffic volume, UV exposure, and the product used. Underground and covered carparks last longer due to reduced UV degradation. The key test is whether a driver can clearly identify bay boundaries, aisle markings, and directional arrows from normal driving position. See our detailed guide on how long line marking lasts.

Do I need to remove old lines before remarking?

If the new layout differs from the old layout in any dimension, yes. Old lines that conflict with new markings create confusion for drivers and can result in a compliance failure even if the new markings are correct. Ghost lines - shadows of removed markings - are also an issue and may require additional removal treatment. See our line marking removal services for more detail on the methods used.

About the Author

Niel Bennet is the Director of Line Marking Australia, which he founded in 2009. LMA has completed over 5,000 projects across all eight Australian states, working with national logistics companies, major retailers, metropolitan councils, and hospital operators. LMA holds $20M public liability and $10M professional indemnity insurance and is VicRoads and Transport NSW approved.

Contact: 0417 460 236 | 240 Plenty Road, Bundoora VIC 3083 | linemarkingaustralia.com.au