What Renovations Require a Building Permit?
Thinking about upgrading your home or business? Before you start tearing down walls or installing new features, it’s important to understand whether your renovation requires a building permit. The rules may vary, so your first point of call should be your local Council or Private Building Surveyor, to determine if you need a Building Permit.
In most cases, anything affecting your property’s structure will require a Building Permit.
A Building Permit ensures your project is safe, compliant, and completed to the Relevant Australian Standards, the National Construction Code (NCC) and Relevant Building Regulations. Skipping this step can lead to legal issues, delays, and unexpected costs down the track.
Do you need a building permit for renovations?
Quick answer: Yes, most major renovations require a building permit, especially if they involve structural changes, additions and new openings in loadbearing walls. Cosmetic updates, such as painting, flooring, and fixture replacements, usually do not need a Building Permit.
Always check with your local council or a registered Building Surveyor before beginning any work.
Quick Reference Guide
| Renovation Type | Pemit Required? | Notes |
|---|---|---|
| Structural changes (walls, decks, extensions) | ✅ Yes | Alters the building footprint or load-bearing structure |
| New plumbing or electrical (domestic) | ❌ No | Licensed professionals, safety and compliance are mandatory |
| New windows or doors | ✅ Yes | Required for new or expanded openings |
| Roofing or cladding changes | Depends | Structural modifications, yes |
| Painting, flooring, countertops | ❌ No | Cosmetic updates only |
| Minor repairs (fixtures, switches) | ❌ No | Does not alter systems |
| Fences | Depends | Check your council’s height limits |
Renovations That Will Likely Require a Permit
If your project affects your home’s structure, layout, essential safety systems, or external appearance, expect to apply for a building permit.
Structural or Layout Changes
These works change how your building is supported or configured:
- Adding or removing internal loadbearing walls
- Extending your home’s footprint (e.g., new deck, shed, garage)
- Modifying balconies, beams, or other load-bearing elements
New Doors or Windows
- Creating new openings in external
- Enlarging an existing window or door
Exterior Modifications
Any changes that alter the structural look or integrity of the home:
- Re-roofing or changing the roofline
- Building a new carport, or garage
Renovations That Typically Don’t Require a Permit
Cosmetic or surface-level updates are usually exempt:
- Painting or wallpapering
- Installing new flooring (carpet, hardwood, laminate)
- Replacing cabinets, benchtops, or bathroom/kitchen fixtures
- Updating taps, faucets, toilets, or light fittings
- Most electrical work (excluding essential safety measures)
- Building fences below your council’s height limit
Even with these, regulations can vary by municipality, so quick confirmation is always recommended.
How to Apply for a Building Permit
A registered Building Surveyor guides you through the permit process and confirms your project meets all required codes.
Here’s how the application process usually works:
- Choose your Building Surveyor: Select either a private or municipal surveyor.
- Prepare your documentation: Provide plans, drawings, specifications, engineering details, and other required documents.
- Submit your application: Include completed forms, supporting documentation, and any prescribed information.
- Pay relevant fees and levies: These vary by state and council.
- Receive your Building Permit: Once approved, you’re legally authorised to begin construction.
What Happens If You Renovate Without a Permit?
Skipping the permit process can lead to serious consequences:
- Fines or enforcement action from your local council
- Insurance issues, e.g. claims may be denied
- Problems selling your property in the future
- Costly rework to bring the home back into compliance
It’s always quicker and cheaper to confirm permit requirements before you start
Why Building Permits Matter
Building permits ensure your renovation:
- Meets safety and structural standards
- Complies with local planning and building regulations
- Maintains your insurance coverage
- Prevents future legal or resale problems
- They protect both you and your property investment.
Need Help With Your Permit?
If you’re unsure whether your renovation requires a permit, our team can help. We’ll ensure you have the knowledge needed to move forward confidently.
Request a Quote
Submit your project details and one of our staff will respond within 24–48 hours. If you haven’t heard back within that timeframe, please contact us again, we’re here to help.
