Last month, a property manager in Moorabbin received a council improvement notice. Their shopping centre carpark had 12 accessible parking bays. Council inspection found every single one non-compliant.

Bay width: 2,900mm instead of the required 3,200mm. Shared area: 1,800mm instead of 2,400mm. Symbols: Faded beyond recognition.

The penalty? $4,800 fine plus mandatory remediation within 30 days. The remarking cost another $6,200. Total financial impact: roughly $11,000.

"Our previous contractor told us the bays were compliant," the property manager said. "We trusted them. Council didn't care."

Here's the thing about Australian Standards for carparks: they're not suggestions. They're mandatory requirements enforced by councils, certifiers, and accessibility auditors. Get them wrong and you're risking fines, legal liability, and potential discrimination claims.

We've marked over 400 carparks to AS/NZS 2890.1:2021 and AS/NZS 2890.6:2009 standards since 2009. Every dimension, every colour, every measurement matters.

This guide explains exactly what's required for carpark compliance in Australia.

Upload your carpark plans for a complete compliance assessment

Understanding AS/NZS 2890 Standards Series

The AS/NZS 2890 series covers parking facilities across Australia and New Zealand. Multiple parts address different parking scenarios.

AS/NZS 2890.1:2021 (Parking Facilities - Off-Street Car Parking)

This is the main standard for commercial carparks, shopping centres, office buildings, residential complexes, and any off-street parking facility.

It covers:

Standard parking bay dimensions
Aisle widths for traffic circulation
Clearance heights
Sight lines and visibility requirements
Ramp grades and transitions
Traffic flow patterns
Signage requirements
Line marking specifications

The 2021 revision updated several requirements from the 2004 version. If your carpark was marked pre-2021 using old standards, it might not be compliant today.

AS/NZS 2890.6:2009 (Parking Facilities - Off-Street Parking for People with Disabilities)

This standard specifically addresses accessible parking requirements. It's based on the Disability Discrimination Act 1992 and creates legal obligations.

It covers:

Accessible bay dimensions (wider than standard bays)
Shared area widths between bays
Symbol requirements (International Symbol of Access)
Location requirements (close to building entries)
Surface grades and cross-falls
Kerb ramps and transitions
Signage (both ground and elevated signs)

Non-compliance with AS/NZS 2890.6 isn't just a council fine risk. It's potential discrimination liability under federal law.

Other Relevant Standards

AS/NZS 2890.2: Parking for commercial vehicles AS/NZS 2890.3: Parking for bicycles AS/NZS 2890.5: Parking for on-street parking areas

This article focuses on 2890.1 and 2890.6 since they cover the majority of commercial carpark line marking projects we complete.

Standard Parking Bay Dimensions Under AS/NZS 2890.1

Here's where most non-compliance issues start: incorrect bay dimensions.

User Class 1 (Small/Medium Cars) Dimensions

Minimum bay width: 2,400mm Minimum bay length: 5,400mm (with no overhang space) Recommended bay width: 2,500mm (provides easier access) Parking angle: 90 degrees to aisle (most common)

These dimensions apply to standard carparks serving shopping centres, offices, apartments, and general public parking.

We marked a medical centre carpark in Cheltenham in 2018. The architect's drawings showed 2,300mm bay widths to squeeze in extra bays. We flagged it immediately. They revised the design. Close call on a non-compliant carpark that would've required expensive remediation.

User Class 2 (Residential/Long-Term) Dimensions

Minimum bay width: 2,600mm Minimum bay length: 5,400mm

Applies to residential apartment buildings, long-term employee parking, and facilities where vehicles park for extended periods. The extra width (200mm more than User Class 1) allows easier access for daily use.

User Class 3 (High Turnover) Dimensions

Minimum bay width: 2,500mm Minimum bay length: 5,400mm

High-turnover situations like shopping centres during peak periods, short-term hospital parking, or event parking.

Angled Parking Variations

60-degree angle parking:

Bay width: 2,500mm minimum
Bay length (parallel to aisle): 5,500mm
Depth (perpendicular to aisle): 5,000mm approximately

45-degree angle parking:

Bay width: 2,600mm minimum
Bay length: 5,500mm
Depth: 4,000mm approximately

Angled parking allows narrower aisles but requires more overall space per bay. We typically only use it where aisle width is constrained.

Common Bay Dimension Mistakes We See

Mistake 1: Undersized bays to fit more spaces. A shopping centre in Dandenong South had marked bays at 2,200mm width. That's 200mm too narrow. Council inspection during an accessibility audit flagged it. They had to remove an entire row of bays to widen the remaining ones. Lost 18 bays total.

Mistake 2: Inconsistent bay sizes. Some bays 2,400mm, others 2,500mm, a few at 2,350mm. Looks sloppy and creates confusion. Pick one dimension and use it consistently.

Mistake 3: Measuring to bay line centres instead of clear space. The 2,400mm is the clear usable space between lines, not centre-to-centre measurement. Add line widths to your calculations.

Accessible Parking Requirements Under AS/NZS 2890.6

Accessible parking bays aren't optional. They're mandatory for public carparks and create significant legal obligations.

How Many Accessible Bays Required?

The standard specifies minimum quantities:

1-50 total bays: Minimum 1 accessible bay 51-75 total bays: Minimum 2 accessible bays 76-100 total bays: Minimum 3 accessible bays 101-200 total bays: Minimum 4 accessible bays 201-500 total bays: Minimum 5 accessible bays, plus 1 for every 100 additional bays

A shopping centre with 380 bays needs minimum 5 accessible spaces. Most provide 6-8 for practical reasons (better distribution across the carpark).

Accessible Bay Dimensions

This is where it gets specific. And expensive if you get it wrong.

Standard accessible bay width: 3,200mm minimum Shared area between two accessible bays: 2,400mm minimum Bay length: 5,400mm minimum (same as standard bays)

The shared area is the critical element. Two accessible bays can share a 2,400mm-wide area between them, giving each bay 3,200mm + 1,200mm of access space.

Alternatively, each bay can have its own 2,400mm access area on one side, making the total bay width 5,600mm (3,200mm bay + 2,400mm access area).

The International Symbol of Access

Every accessible bay requires the International Symbol of Access (wheelchair symbol) marked on the ground. Minimum symbol size: 900mm high.

The symbol must be:

White on blue background, or
White on the parking surface itself

Symbol position: centred in the bay, typically toward the front 1/3 of the bay for visibility.

Additionally, elevated signage (pole-mounted signs 2,100mm minimum height) must mark accessible bays for visibility before entering the bay.

Location Requirements

AS/NZS 2890.6 specifies that accessible bays must be:

Located as close as possible to the main entrance
Connected to the entrance by an accessible path of travel
On relatively flat ground (maximum 2.5% grade longitudinal, 2.5% cross-fall)
Protected from vehicle traffic when possible

A warehouse in Campbellfield had accessible bays at the far end of their carpark, 80+ metres from the entrance. Council required relocation closer to the building. That meant removing and remarking multiple bays. Cost roughly $4,200 to fix what should've been done correctly initially.

Surface Requirements

The accessible path from the bay to the building entrance must meet AS/NZS 1428.1:2009 requirements:

Minimum 1,000mm clear width
Maximum 5% grade
Maximum 2.5% cross-fall
Firm, stable, slip-resistant surface

If kerbs exist, compliant kerb ramps are mandatory.

Send us your carpark layout for accessible parking compliance assessment

Line Marking Width and Colour Standards

AS/NZS 2890.1:2021 specifies line marking requirements that many contractors ignore or don't know about.

Line Width Requirements

Standard bay lines: 75-100mm width Aisle edge lines: 100mm width minimum Crosswalks and pedestrian areas: 150-300mm width

We use 100mm as standard for all bay markings. Narrower lines (50-75mm) look neat but they're harder to see and wear less evenly. Wider is better for visibility and longevity.

Colour Requirements

White lines: Standard bay markings, aisle edges, general traffic areas Yellow lines: No-parking zones, loading zones, restricted areas (though white is also acceptable) Blue background: Accessible parking symbols only

A common mistake: using yellow for all line marking because it "looks brighter." Yellow is fine but it's not required. White is the standard and compliant choice.

Line Types

Continuous lines: Bay boundaries, aisle edges Broken lines: Traffic flow guidance, suggested paths Hatching: Exclusion zones, no-parking areas (typically 45-degree diagonal lines)

Aisle Widths and Traffic Flow

Inadequate aisle widths create dangerous situations and non-compliance.

Two-Way Aisle Widths

90-degree parking, two-way traffic: 6,000mm minimum 60-degree parking, two-way traffic: 5,500mm minimum 45-degree parking, two-way traffic: 4,000mm minimum

These are absolute minimums. We typically recommend 6,500mm for 90-degree parking in high-turnover commercial carparks. The extra 500mm reduces conflict points and tight maneuvering.

One-Way Aisle Widths

90-degree parking, one-way traffic: 3,500mm minimum 60-degree parking, one-way traffic: 3,500mm minimum 45-degree parking, one-way traffic: 3,000mm minimum

One-way flow allows narrower aisles but requires clear directional signage and arrows marked on the surface.

Aisle Width Mistakes

A shopping centre in Frankston had marked 90-degree bays with 5,500mm aisles. That's 500mm too narrow for two-way traffic. Vehicles couldn't pass each other when someone was reversing. They had to remove every second row of bays to create 7,000mm aisles. Lost roughly 40 bays.

The cost to repaint was roughly $12,000. The lost rental income from 40 fewer bays? Thousands per month ongoing.

Measure your aisles carefully before marking bays.

Clearance Heights and Overhead Requirements

AS/NZS 2890.1:2021 specifies minimum clearance heights throughout carparks.

Standard Clearance Requirements

Minimum clearance (standard carparks): 2,100mm Recommended clearance (commercial carparks): 2,200-2,300mm High-clearance bays (if provided): 2,500mm minimum

The 2,100mm minimum accommodates most passenger vehicles including small 4WDs and vans. But roof racks, bike carriers, or cargo boxes can exceed this.

We always recommend 2,200mm minimum for commercial applications. It provides buffer for larger vehicles and reduces insurance claims from height impacts.

Clearance at Building Entries

Minimum entry clearance: 2,100mm Signage required: Clear height signs before entry points

A basement carpark in Docklands had 2,050mm clearance at the entry ramp but 2,200mm throughout the interior. That's non-compliant. The entry point determines access. They had to reconstruct the entry ramp to achieve 2,100mm minimum.

Cost? Roughly $85,000 for structural work. All because the initial construction didn't verify clearances properly.

Sight Lines and Visibility Requirements

Blind corners and poor sight lines cause accidents. AS/NZS 2890.1 addresses visibility requirements.

Sight Distance at Intersections

At carpark aisle intersections, drivers must have clear sight lines to detect approaching vehicles. The standard specifies minimum sight distance based on speed and geometry.

For typical low-speed carpark environments (10-20 km/h), minimum sight distance is approximately 15-20 metres.

Obstructions (columns, walls, equipment, vegetation) within sight triangles must be minimized. Where unavoidable, convex mirrors are required.

Sight Lines for Reversing

When reversing from parking bays, drivers need clear sight lines along the aisle. Minimum visibility: 20 metres in each direction from the bay.

If structural elements obstruct this, you're creating dangerous situations. Redesign the layout or install mirrors.

Ramp Grades and Transitions

Multi-level carparks have ramps connecting levels. AS/NZS 2890.1 specifies maximum grades.

Maximum Ramp Grades

Straight ramps: 1:6 maximum (16.7%) Curved ramps: 1:8 maximum (12.5%) Accessible routes: 1:14 maximum (7.1%)

Steeper ramps are dangerous in wet conditions and difficult for older vehicles or loaded trucks.

Transition Zones

Where ramps meet flat surfaces, transition zones are required to prevent vehicles scraping. Minimum transition length: 2,500mm at 1:15 grade (gentler slope leading into the ramp).

A commercial building in Preston had ramps at 1:5 grade (20%). That exceeds the standard maximum. During wet weather, multiple vehicles lost traction. After a minor collision, they engaged engineers to regrade the ramps to compliant 1:7. Cost roughly $125,000.

Signage Requirements

Line marking alone isn't sufficient. AS/NZS 2890.1 requires various signage.

Directional Signage

Entry/exit signage
Directional arrows to parking areas
Level identification (in multi-level facilities)
One-way traffic directions

Regulatory Signage

Speed limits (typically 10 km/h in carparks)
No entry signs
Height clearance warnings
Loading zone time restrictions

Accessible Parking Signage

AS/NZS 2890.6 requires pole-mounted signs at each accessible bay:

International Symbol of Access
Minimum sign height: 2,100mm above ground
Reflective material for visibility

Ground markings alone don't satisfy the standard. Elevated signage is mandatory.

Surface Quality and Maintenance Standards

The carpark surface itself must meet standards before line marking.

Surface Condition Requirements

Maximum crack width: 10mm (larger cracks require repair) Surface roughness: Suitable for safe vehicle movement Drainage: No standing water accumulation Level changes: Maximum 15mm without beveled transitions

We've assessed carparks with severe cracking, subsidence, and drainage failures. Line marking these surfaces is pointless. The substrate needs repair first.

A carpark in Keysborough had subsided 80mm in sections due to poor fill compaction. Water pooled heavily. We refused to mark it until repairs were completed. The owner tried other contractors. Two marked it. Within 6 months, markings were underwater half the time and the council issued improvement notices for drainage failures.

They ended up repairing the surface anyway (roughly $180,000 for overlays and drainage). Then remarked it properly.

Slip Resistance

While not explicitly stated in AS/NZS 2890.1, slip resistance requirements from AS 4586:2013 apply to pedestrian areas within carparks. Minimum R10 rating for outdoor pedestrian crossings.

Penalties for Non-Compliance

Getting carpark standards wrong has real consequences.

Council Improvement Notices

Councils conduct random audits and respond to complaints. Non-compliant carparks receive improvement notices specifying:

Specific non-compliances identified
Required remediation actions
Timeframe for compliance (typically 30-90 days)
Penalties for non-compliance

Ignore an improvement notice and councils can:

Issue infringement penalties ($5,000-$15,000 typical)
Revoke occupancy certificates
Pursue court orders for compliance

Discrimination Claims

Non-compliant accessible parking creates liability under the Disability Discrimination Act. Individuals or advocacy groups can lodge complaints with the Australian Human Rights Commission.

Settlements can include:

Mandatory remediation (at owner's cost)
Compensation to complainants ($5,000-$20,000+)
Legal costs (often exceeding $50,000)

A shopping centre in Ballarat faced a discrimination complaint over non-compliant accessible bays. Settlement required:

Immediate remediation ($14,000)
Compensation to complainant ($8,000)
Legal costs ($28,000)

Total: $50,000+ for accessible bays that should've cost $3,500 to mark correctly initially.

Insurance Implications

Non-compliant carparks can affect insurance coverage. If an accident occurs due to non-compliant design (inadequate sight lines, incorrect bay dimensions causing door damage, unmarked hazards), insurers may deny claims.

We've seen three cases where insurers reduced claim payments citing non-compliant carpark design as a contributing factor.

Get your carpark assessed for compliance before council does

New Carparks vs Existing Carparks

Compliance requirements differ for new construction versus existing facilities.

New Carpark Compliance

All new carparks must comply with current standards (AS/NZS 2890.1:2021 and AS/NZS 2890.6:2009). No exceptions. Certifiers won't issue occupancy certificates for non-compliant designs.

We review plans for architects and developers regularly. Catching compliance issues at design stage saves massive remediation costs.

Existing Carpark Requirements

Existing carparks marked under previous standards (2004 version of AS/NZS 2890.1) aren't automatically required to upgrade to 2021 standards unless:

Significant renovations occur (typically >50% of carpark area)
Accessible parking is modified or added
Council issues specific improvement notices
Complaints trigger audits

However, best practice is bringing existing carparks to current standards during scheduled repainting. The cost difference is minimal and compliance risk is eliminated.

State-Specific Variations and Council Requirements

While AS/NZS standards apply nationally, some states and councils add requirements.

Victoria Specific Requirements

VicRoads provides supplementary guidance for carparks connecting to public roads. Sight distances at entries/exits must meet road authority standards.

NSW Specific Requirements

Transport for NSW adds requirements for carparks in certain areas. Some councils require traffic impact assessments for carparks over 50 bays.

Queensland Specific Requirements

Department of Transport and Main Roads Queensland specifies accessible parking ratios that sometimes exceed AS/NZS 2890.6 minimums for government facilities.

Council Variations

Some councils require:

Higher accessible bay ratios (1 per 30 bays instead of standard ratios)
Specific line marking colours for different zones
Additional signage beyond standard requirements

Always verify local council requirements before finalizing designs. We maintain relationships with council planning departments across Victoria and can advise on local variations.

Getting Your Carpark Compliant

If you're responsible for a carpark, here's the process we recommend.

Step 1: Compliance Audit

Engage professionals to assess current compliance. We provide comprehensive audits documenting:

Bay dimensions and counts
Accessible parking quantity and specifications
Line widths and conditions
Aisle widths and clearances
Signage adequacy
Surface condition

Audit cost: typically $800-$1,500 depending on carpark size. Far less than council fines.

Step 2: Remediation Planning

If non-compliances exist, develop a remediation plan:

Critical issues (accessible parking, safety hazards): immediate action
Moderate issues (undersized bays, narrow aisles): short-term planning
Minor issues (line wear, signage upgrades): schedule with regular maintenance

Step 3: Council Consultation

For significant changes (bay layout modifications, accessible bay relocations), consult your council planning department before proceeding. Many councils provide free pre-lodgement advice.

Avoid surprises by getting council feedback early.

Step 4: Implementation

Execute remediation work using contractors experienced with AS/NZS standards. Request:

Detailed specification documents
Material certifications
Dimension verification measurements
Photographic documentation

Step 5: Ongoing Maintenance

Schedule regular inspections (annually minimum). Line markings degrade over time. Repaint before they become non-compliant through wear.

What We've Learned From 400+ Compliant Carparks

We've been marking carparks to Australian Standards since 2009. Here's what we've learned from hundreds of compliance projects.

Most Non-Compliances Are Preventable

The Moorabbin shopping centre story from the beginning happened because the contractor didn't know the standards. Every single non-compliance was preventable with proper specification knowledge.

We've never had a council issue an improvement notice on any carpark we've marked. Why? Because we verify every dimension against current standards before starting work.

Accessible Parking Gets the Most Scrutiny

Councils and advocacy groups focus heavily on accessible parking compliance. It's the most audited, most complained about, and most penalized non-compliance.

Get accessible parking right. Triple-check dimensions. Verify symbol sizes. Confirm signage heights.

Cutting Corners Costs More Later

We've remarked dozens of carparks originally done by cheap contractors who marked undersized bays to fit more spaces or skipped accessible parking requirements entirely.

Every single one cost more to fix than doing it properly initially. Plus council fines. Plus downtime. Plus reputation damage.

Documentation Protects You

When marking carparks, we provide clients with:

As-built drawings showing all dimensions
Material certifications proving compliant products used
Photographic evidence of completed work
Dimension verification measurements

If council questions compliance years later, this documentation proves due diligence.

Schedule Your Carpark Compliance Assessment

We've marked over 400 carparks to AS/NZS 2890.1 and AS/NZS 2890.6 standards across Victoria, NSW, Queensland, WA, SA, TAS, ACT, and NT.

We know every dimension, every requirement, every common mistake. We work with councils, certifiers, and accessibility auditors regularly.

What we provide:

Complete compliance audit against current standards
Detailed remediation recommendations with priorities
Fixed-price proposals for all work
Dimension verification and documentation
Material certifications proving compliant products
Council liaison if required
Photographic evidence of compliant work

Contact Director Niel Bennet: 0417 460 236

Don't wait for a council improvement notice or discrimination complaint. Get your carpark compliant now.

Australian Standards Explained for Carpark Compliance