A new roof on the same frame, in the same shape, feels like maintenance. Planning law does not always see it that way, and the answer turns on where the house is, what it is listed as, and what the new cladding is made of.
In New South Wales, re-cladding the roof of a one or two storey house can be exempt development under the Codes SEPP, so no approval is needed when the development standards are met. The exemption does not apply to heritage items or heritage conservation areas, including draft listings, and it allows no combustible cladding. In Queensland, ask your council or a certifier first.
When is a new roof exempt development in NSW?
The NSW planning department says cladding and re-cladding work on the walls and roofs of one and two storey dwelling houses can be carried out as exempt development. Three conditions decide whether your job qualifies.
- The work is non-structural. The exemption is written for cladding. Changing the roof structure, the pitch or the framing sits outside it.
- The building is not heritage. The exemption for minor external alterations excludes heritage items or heritage conservation areas, including draft listings.
- No combustible cladding, and no more than two storeys. The exemption allows no combustible cladding, and a dwelling house taller than two storeys cannot have its cladding redone as exempt development at all.
The Codes SEPP also carries a set of development standards for this kind of work. Meeting all of them is what makes the job exempt, so read them, or have your roofer confirm in writing which ones the job is built to.
What about Queensland?
Queensland's Building Regulation 2021 treats some building work as accepted development, which needs no building approval but must still comply with the relevant codes and standards, and may still need approval under the local planning scheme. On top of that, for houses in character areas, a planning approval is likely to be required.
No Queensland government page we found states plainly whether re-roofing a house is accepted development; the detail sits in Schedule 1 of the Building Regulation itself. Ask your local council or a private building certifier before work starts, and keep the answer in writing. If your roofer says no approval is needed, ask them to name the provision they are relying on.
Which rules apply whether or not you need approval?
Approval is only one gate. Licensing and contract rules apply to the job either way, and a re-roof clears most of their thresholds.
Show the numbers
| Item | Value | Source |
|---|---|---|
| QLD: licensed contractor and contract | $3,300 | Queensland Building and Construction Commission, when you need a licence |
| NSW: written contract | $5,000 | NSW Government, contracts for residential building work |
| NSW: Home Building Compensation cover | $20,000 | NSW Government, contracts for residential building work |
Official figures. Source: Queensland Building and Construction Commission, when you need a licence; NSW Government, contracts for residential building work.
Queensland building work valued over $3,300 must be done by an appropriately licensed person, with a contract. In New South Wales a written contract is needed for residential building work over $5,000 including GST, and Home Building Compensation cover once the work is worth more than $20,000. Our quote checklist covers deposits too.
What usually pushes a re-roof into needing approval?
- A heritage listing, a draft listing, or a heritage conservation area.
- Work that changes structure rather than cladding.
- Anything involving combustible external cladding.
- In NSW, a dwelling house of more than two storeys.
- Character areas and locally listed places in Queensland.
What about Victoria, South Australia and Western Australia?
This guide covers NSW and Queensland only. We add a state once its rule is checked on the responsible government page. Until then, your council's planning or building counter is the right first call.
A plain summary of official pages, linked below, not legal or planning advice. Planning rules change, and the local scheme can add requirements the state rules do not mention.