Do I Need a Permit for a Granny Flat in Victoria? (2025 Guide)

Navigating the rules for building a granny flat in Victoria can seem confusing, but recent changes have made the process much simpler. The short answer is: yes, your finished project will always need a Building Permit, but you will likely not need a Planning Permit.Understanding this distinction is the key to a smooth, fast, and legal project. This guide provides a clear, step-by-step explanation of the permit requirements for 2025, what the rules mean for you, and how to ensure your project is successful from the start.

The Simple Answer: Planning Permit vs. Building Permit

In Victoria, there are two types of permits. Confusing them is the most common mistake homeowners make.

1. Planning Permit (You Probably Don’t Need This)

A Planning Permit deals with the use of the land and its impact on the neighbourhood. Thanks to recent Victorian government changes (Amendment VC253), you generally do not need a planning permit for a granny flat project if it meets these key criteria:

• The finished granny flat is 60 square metres or less.
• Your property is 300 square metres or larger.
• Your property does not have special restrictions (like heritage or environmental overlays).

This change has removed the biggest hurdle for most homeowners, making the process much faster.

2. Building Permit (Your Finished Project Absolutely Needs This)

A Building Permit deals with the safety and compliance of the structure itself. It ensures the building is safe, structurally sound, and meets the National Construction Code. A finished, habitable granny flat will always require a Building Permit in Victoria. This is a non-negotiable legal requirement.

The MaxTrans Advantage: Starting with a Compliant Foundation

This is where starting with the right foundation makes all the difference. You aren’t just buying a kit; you are buying a fully-engineered structural shell designed for compliance.Our role is to make the mandatory Building Permit process as easy as possible for you. Because you start with a MaxTrans all-steel frame, you are starting with a structure that already meets the National Construction Code. We provide you with the essential engineering documents and specifications to give to your Building Surveyor, saving you a critical and often expensive step.

The Step-by-Step Application Process for Your Permit

Here is the typical process for getting your owner-builder project approved in Victoria.

Step 1: Engage a Building Surveyor

Your first step is to engage a private or council Building Surveyor. They will manage the Building Permit process for you and will be your main point of contact for compliance.

Step 2: Compile Your Documentation

Your surveyor will require a set of documents to lodge the application, including:

• A completed building permit application form.
• A copy of your property title and a detailed site plan.
• Detailed construction plans (floor plans, elevations) for your finished project.
• The Engineering Specifications for your MaxTrans Kit.

Step 3: Submit and Review

Once submitted, the application is reviewed. Having pre-approved engineering for the core structure significantly streamlines this stage.

Your Local Council’s Role

While the state rules are clear, it is always a wise step to contact your local council’s planning department before you begin. They can confirm if any local overlays (like heritage, environmental, or flood zones) apply to your property which might trigger the need for a Planning Permit.

Conclusion: The Smart Path to a Compliant Granny Flat

The key to a successful granny flat project in Victoria is to remember the simple formula: likely no Planning Permit, but always a Building Permit for the finished home.By starting with a MaxTrans kit, you are not just buying steel; you are investing in a straightforward compliance pathway. Our engineered, code-compliant shells are the smartest foundation for any owner-builder looking to add a valuable, legal, and safe dwelling to their property.If you have questions about how our kits simplify the permit process, don’t hesitate to get in touch. Contact Peter today to discuss your project.