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Standard Garage Size in Victoria: Dimensions, Planning Rules, and What Developers Need to Know

Sammi Lian
Sammi Lian
Principal Architect, ARBV Registered
January 8, 2023 Updated April 8, 20262 min read
Standard Garage Size in Victoria: Dimensions, Planning Rules, and What Developers Need to Know
Key Takeaway

Standard garage sizes in Victoria — single (3.5m x 6m), double (5.5m x 6m), and multi-car dimensions. Covers Victoria's Planning Provisions, VC277 car parking reforms, and council requirements for Melbourne developments.

VC277 Car Parking Reform: How It Affects Garage Requirements

Victoria’s Amendment VC277 introduced PTAL-based (Public Transport Accessibility Level) car parking requirements. For development sites with high public transport access scores, the number of required car parking spaces may be reduced, which directly affects garage sizing decisions.

Sites near train stations in areas like Box Hill, Doncaster, and Camberwell may benefit most. A reduced parking requirement means more of the site can be allocated to developable floor area rather than garage space.

Developers should check their site’s PTAL score early in the design process, as it may change the garage configuration from the outset.

How Garage Design Affects Development Potential

For developers planning a subdivision or dual occupancy, garage placement and sizing have flow-on effects for the entire site layout. The garage position determines driveway location, which affects crossover requirements and access to rear lots.

Where a garage conversion is being considered, the existing garage dimensions determine whether the space can be reclassified as habitable without major structural modifications.

Frequently Asked Questions

What is the minimum garage size required in Victoria?

A single garage requires minimum dimensions of 3.5m by 6m. A double garage requires 5.5m by 6m.

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Do I need council approval to build a garage in Victoria?

In most cases, yes. A building permit is required, and a planning permit may be needed depending on zone and overlay controls.

How does VC277 affect the number of car parking spaces I need?

If your site has good public transport access, you may be able to reduce parking spaces, freeing up site area for development.

Can I convert my garage into a habitable room?

Yes, but it must meet NCC standards including 2.4m ceiling height, natural light, ventilation, and waterproofing. See our garage conversion guide.

How does garage placement affect subdivision potential?

Garage position determines driveway access and crossover locations. Poor placement can reduce achievable lots. See our subdivision guide.

Planning a development? Book a free strategy session or call (03) 9005 6588.

This article provides general information only. Requirements vary between councils. Always obtain professional advice before proceeding.

SQM Architects – ABN 32 600 928 390, ARBV Reg. No. 51498

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