Do You Need a Building Permit for a Bathroom Renovation in Victoria?

Whether a bathroom renovation in Victoria requires a building permit is one of the most common questions homeowners ask before starting a project. The answer depends on exactly what work is being done, and getting it wrong carries real consequences. Carrying out regulated work without a permit can result in fines, orders to demolish and redo the work, and serious complications when selling your property.

This guide covers which bathroom renovation work requires a building permit in Victoria, which work does not, how the permit process works, and what happens if unpermitted work is discovered later. It is written for Melbourne homeowners planning a bathroom renovation and wanting a clear, practical answer before committing to a scope of work.

The Short Answer

Most standard bathroom renovations in Victoria do not require a building permit. Replacing fixtures, retiling, installing a new vanity or shower screen, and updating tapware are all considered maintenance and renovation work that falls below the threshold requiring a permit.

A building permit is required when the work involves structural changes, new plumbing positions, removal of walls, or the creation of a new wet area in a space that was not previously a bathroom. The key question is whether the work changes the structure of the building or the position of plumbing, not simply whether it is a renovation.

Work That Does and Does Not Require a Permit

The table below summarises the most common bathroom renovation scenarios and whether a building permit is required under the Building Act 1993 (Victoria) and associated regulations.

Note: this table is a general guide. The specific requirements for your project depend on your property type, council overlay, and the scope of work. Your builder or a registered building surveyor can provide a definitive assessment for your project.

Why Plumbing Work Has Its Own Rules

Plumbing is regulated separately from building work in Victoria. All plumbing work, including connecting or disconnecting fixtures, must be carried out by a licensed plumber regardless of whether a building permit is required.

After completing any plumbing work, the licensed plumber must issue a Certificate of Compliance (sometimes called a Compliance Certificate) confirming the work meets the relevant standards. This certificate is your documentation that the plumbing was done correctly and to code. Keep it with your property records.

For like-for-like plumbing connections (replacing a toilet in the same position, connecting a new vanity basin to existing waste), a Certificate of Compliance is required but a building permit is not. Where plumbing is relocated to a new position, a building permit will generally also be required.

What Is a Building Permit and Who Issues It

A building permit in Victoria is a formal approval confirming that the proposed building work complies with the Building Act 1993, the Building Regulations 2018, and the National Construction Code. It is issued by a registered building surveyor, not by your local council directly.

There are two ways to obtain a building permit in Victoria:

• Private building surveyor: You engage a private registered building surveyor directly. This is usually faster than the municipal route and is the approach most renovation companies recommend.
• Municipal building surveyor: The building surveyor employed by your local council. Processing times vary between councils but typically take two to six weeks.

Your renovation company or builder will typically manage the permit application on your behalf as part of the project. Confirm this in your contract and check who is listed as the responsible party on the permit documentation.

How Much Does a Building Permit Cost for a Bathroom Renovation in Victoria?

Building permit fees in Victoria are set by regulation and are based on the value of the work. For a bathroom renovation, permit costs typically fall in the following ranges:

• Renovation value under $10,000: minimal or no permit fees (and most work at this value does not require a permit)
• Renovation value $10,000 to $50,000: permit fees typically $600 to $1,500, depending on the surveyor and complexity
• Renovation value $50,000 to $100,000: permit fees typically $1,200 to $2,500

In addition to the surveyor's fee, some councils charge a separate levy. The Building and Construction Industry Long Service Leave levy, known as the LSL levy, is also payable on projects over $15,000 and is calculated at a set rate on the project value. Your renovation company can provide exact figures for your project.

The Permit Process Step by Step

If your bathroom renovation requires a building permit, the process in Victoria follows these stages:

Step 1: Engage a registered building surveyor

Your builder will typically recommend a private building surveyor they work with regularly. You can also find a registered building surveyor through the Victorian Building Authority's public register at vba.vic.gov.au.

Step 2: Submit plans and documentation

Your builder or designer prepares the necessary documentation, which typically includes a site plan, floor plan showing the proposed work, and details of any structural changes. For structural work such as wall removal, an engineer's report and structural drawings will also be required.

Step 3: Permit assessment

The building surveyor assesses the documentation against the Building Regulations and National Construction Code. For straightforward bathroom renovations, this process typically takes three to ten business days with a private surveyor. Complex projects or those requiring additional information can take longer.

Step 4: Permit issued

Once approved, the building permit is issued and work can commence. The permit document must be displayed on site during construction.

Step 5: Mandatory inspections

Building permits in Victoria come with mandatory inspection stages. For bathroom renovations, the most common mandatory inspection is the pre-lining inspection, which must be passed before walls are closed and tiling begins. Your building surveyor will specify which inspections are required for your project.

Step 6: Certificate of Final Inspection or Occupancy Permit

Once all work is complete and any required inspections are passed, the building surveyor issues a Certificate of Final Inspection or, for more significant works, an Occupancy Permit. This document confirms the work was completed in accordance with the approved permit and is an important record for your property.

What Happens If You Renovate Without a Required Permit

Carrying out work that requires a building permit without obtaining one is a serious matter in Victoria, and the consequences can be significant.

Fines and enforcement notices

The Victorian Building Authority and local councils have the power to issue enforcement notices requiring unpermitted work to be rectified or demolished. Fines for carrying out work without a permit can reach into the tens of thousands of dollars for serious breaches.

Insurance complications

Unpermitted building work can void your home insurance policy in relation to that part of the building. If water damage or structural failure occurs in an area where unpermitted work was done, your insurer may decline the claim.

Complications at point of sale

When you sell a property in Victoria, you are required to disclose any outstanding building permits or unpermitted works. Unpermitted bathroom work discovered during a pre-purchase inspection can result in price negotiations, delayed settlement, or a buyer withdrawing from the contract. Retrospective permits are possible but involve inspection of the completed work, which may require tiles and linings to be opened up for assessment.

Impact on refinancing

Lenders and valuers increasingly check for permit compliance as part of the refinancing assessment process. Unpermitted works can affect the valuation of your property and complicate refinancing applications.

Heritage Overlays and Special Requirements in Melbourne

Properties in Melbourne's eastern suburbs that are subject to a heritage overlay may have additional requirements over and above the standard building permit process. If your property is covered by a heritage overlay, any external changes, and in some cases internal changes to significant heritage fabric, may require a planning permit from your local council as well as the standard building permit.

To check whether your property is subject to a heritage overlay, search the Victorian Planning Information System (VPING) or contact your local council's planning department. Heritage overlays are more common in established inner and middle-ring suburbs and in areas with significant Victorian or Edwardian housing stock.

How a Reputable Renovation Company Handles Permits

A reputable bathroom renovation company in Melbourne will identify which permits are required for your project during the design and quoting stage, before any contract is signed. This means the cost of the permit, the surveyor's fee, and any associated inspections should be included in or clearly outlined alongside the renovation quote.

Be cautious of any company that dismisses the question of permits or suggests that the work can proceed without one. The legal and financial consequences sit with you as the property owner, not with the contractor, if unpermitted work is later discovered.

At APD Design, all renovation projects are assessed for permit requirements as part of the initial consultation. Where a permit is required, we manage the application and inspection process on your behalf and include this as part of our project management service.

A Note on Plumbing Certificates of Compliance

Even for renovations that do not require a building permit, always ask your renovation company to confirm that your plumber will issue a Certificate of Compliance on completion. This document is your proof that the plumbing work meets Victorian standards and has been inspected and certified by a licensed plumber. File it with your property records alongside your building permit documentation.

Getting the Right Advice for Your Project

If you are unsure whether your planned bathroom renovation requires a building permit, the safest approach is to ask a registered builder or building surveyor before work begins. At APD Design, we provide a free consultation for Melbourne homeowners planning a bathroom renovation, including an honest assessment of what approvals your project will require.

Contact our team on 03 9034 6490 or at APD@apadanadesign.com.au. Our showroom at Unit 64, 31-37 Norcal Road, Nunawading is open Monday to Friday.