Short answer: repairs usually no, replacements sometimes, new or relocated barriers usually yes. The line between those categories decides whether you are picking up a screwdriver or lodging paperwork, so it is worth getting right before the old fence comes down.
Replacing a broken paling, re-tensioning hinges, swapping a latch, or replacing a damaged panel with an identical one in the same position is maintenance. No approval, but the repaired barrier must still meet the standard that applies to your pool, a repair is not a free pass to rebuild something non-compliant the way it was.
Replacing an entire barrier, even along the same line, is treated as building work in many cases, particularly in Victoria, where new pool barrier work generally needs a building permit, and in parts of NSW and QLD depending on the scope. Two rules of thumb: if the material or height changes, assume approval is needed, and if in doubt, one phone call to your council's building department settles it in minutes.
Relocating the fence line, enclosing a previously open area, or fencing a new pool is building work everywhere: building approval in QLD through a private certifier, the relevant approval pathway in NSW, and a building permit in Victoria. Your fencing contractor or certifier normally manages this, but confirm who is lodging it, unapproved barrier work surfaces at the worst time, during a sale.
After any significant barrier work, the pool needs to be re-certified. In Victoria, barrier alterations restart your certificate obligations, in QLD and NSW, a materially changed barrier needs a fresh inspection for the certificate to mean anything. Build the $350 inspection into the fencing budget, not as an afterthought.
Planning barrier work because the old fence will not pass? Get the fail list first, a rectification advice visit or virtual inspection often finds a $50 fix where owners assumed a $5,000 fence. Then book the certification once the work is done.
Ready when you are
Fixed price confirmed before we book, inspection completed on site, and your certificate lodged for you.