Sydney’s auction market has moved from a brief improvement back below the 50% mark. Cotality’s final result for the week ended 20 September was 46.2% across 569 auctions, down 6.6 percentage points in one week.
The change is more useful when read with both auction volume and the multi-week trend. It points to a market where transactions are still occurring, but sellers need stronger evidence before assuming competition will carry a campaign.
Three weeks show a clear change in momentum
Sydney’s final Cotality results were:
- Week ended 6 September: 52.5% across 501 auctions.
- Week ended 13 September: 52.8% across 548 auctions.
- Week ended 20 September: 46.2% across 569 auctions.
The first two weeks showed a modest improvement while volumes increased. The latest week reversed that pattern: auction numbers rose again, but the clearance rate fell materially.
Higher supply is testing price alignment
A clearance rate below 50% means more than half of the known results did not sell. It should not be used as a valuation for an individual property, but it is a useful signal that reserve prices and buyer willingness are often not aligned.
Across the combined capital cities, Cotality reported that passed-in properties represented 69.6% of unsuccessful results in the week ended 20 September. That broader pattern suggests many vendors are still proceeding to auction, but bidding is not reaching the required level.
The next Sydney schedule is much larger
Cotality reported 904 Sydney auctions scheduled for the week ending 27 September. That is 58.9% more than the 569 held one week earlier, although still 22.3% below the corresponding week in 2025.
The scheduled volume should be treated as the next test, not as evidence of demand. A larger catalogue gives buyers more alternatives and makes the comparison between price guide, competing listings and recent sales more important.
What vendors should review before auction day
The most useful campaign evidence is property-specific:
- the number and quality of contract requests;
- repeat inspections and identified bidders;
- written offers and their conditions;
- feedback on the price guide and property presentation;
- recent comparable sales that genuinely match the property; and
- a clear post-auction negotiation plan if the reserve is not met.
Auction can still create competition for the right property. In the current market, however, it works best as the final stage of a well-calibrated campaign rather than as a substitute for realistic positioning.
General market information only. It is not financial, legal or valuation advice.
Owner Takeaway
Sydney final clearance rate has fallen below 50% just as the auction schedule expands. Sellers should set the reserve from comparable sales and live buyer evidence, not from the asking prices of unsold competitors. Before auction day, agree on how genuine pre-auction offers will be handled, what bidding level would justify adjusting expectations, and how the property will move into post-auction negotiation if it does not sell under the hammer.
