By Steve, Director · Ascend Roofing Group · August 2026 · 7 min read
This is one of the most common questions we get before a quote is accepted, and the honest answer is: it depends on your property, not just on the work. Here is how to figure out which side of the line you are on — and why it is worth confirming before the first tile comes off.
Like-for-like replacement is usually the simple case
Replacing a roof with the same material, in the same profile, at the same pitch, with no structural change is generally treated as maintenance rather than new building work. Most straightforward re-roofs fall here.
That does not mean nothing applies. The work still has to comply with the National Construction Code and relevant Australian Standards, and it still has to be done by an appropriately licensed contractor. It just means you are less likely to need a development approval before starting.
Changing material or structure changes the answer
Going from tile to metal alters the load on your frame, and often involves new battens and tie-downs. Depending on the extent, that can constitute building work requiring approval and certification.
Anything that changes the roof form — raising a pitch, altering the roofline, adding dormers or significant penetrations — is more likely again to need approval.
The practical test we use: if the roof will look different from the street, or if the structure underneath is changing, assume approval may be required and check before committing.
Character and heritage overlays are the big one in Brisbane
Brisbane has a large stock of pre-1947 housing, and much of it sits under a traditional building character overlay. Similar provisions exist in other South East Queensland councils.
Where an overlay applies, the rules can restrict changes visible from the street — including roof form, material and sometimes colour. A tile-to-metal conversion on a character home is exactly the kind of change these provisions exist to control.
If your home is pre-war and in an established suburb, check your property's overlays on your council's planning map before you plan the job around a particular material.
Asbestos changes the compliance picture entirely
If your existing roof is Super Six fibro or another asbestos-containing sheet, workplace health and safety obligations apply on top of any planning question. Queensland has clear rules on who may remove asbestos, in what quantity, and how it must be contained, transported and disposed of.
This is not an area to improvise or to take a cheap quote on. Our asbestos roof removal guide covers what compliant removal looks like and what to ask a contractor to show you.
What to do before you sign anything
Three steps that take an afternoon and can save months:
- Look up your address on your council's planning map and note any overlays — character, heritage, flood, bushfire.
- Ask your roofer, in writing, whether the proposed work involves structural change or a change of material.
- If either answer is yes, speak to a private building certifier before work is scheduled. They will tell you quickly whether approval is needed.
A note on this guide
Planning rules differ between councils and change over time, and your property's circumstances matter. Treat this as a starting point for the right questions rather than as legal or planning advice, and confirm the specifics with your local council or a registered building certifier.
Common questions
Does a straightforward Colorbond® re-roof need approval?
Often not, where it is a like-for-like replacement with no structural change and no overlay applies. Confirm with your council or a building certifier, because the answer depends on your property.
Who is responsible for getting approval — me or the roofer?
Ultimately the property owner, though a good contractor will flag when approval is likely and can work with a certifier. Agree in writing who is arranging what before work starts.
What happens if work proceeds without required approval?
You can be required to obtain retrospective approval or to undo the work, and it can complicate a future sale. It is far cheaper to check first.
Talk to a licensed Brisbane roofer
Ascend Roofing Group is a family-owned, QBCC-licensed roofing business working across Brisbane, the Gold Coast, Logan, Ipswich and Moreton Bay. Free inspection, written quote, no obligation.
Get a free quote or call 0419 098 049.