Buying at auction can be exciting but also intimidating. Unlike other sales methods, there is no cooling-off period, so when the hammer falls, you are legally committed. That is why preparation is everything when it comes to buying property at auction.
This guide walks you through the entire auction process, from getting finance ready to collecting the keys. For bidding strategies specifically, see our guide on tips for bidding at auction.
Step 1: Get Your Finance Ready (4 to 6 Weeks Before)
Auctions are unconditional, which means you need to know exactly what you can afford before you bid. This is not the time for guesswork, and getting pre-approved is essential.
Getting Pre-Approved
Start by talking to a mortgage adviser about your borrowing capacity. Pre-approval gives you a clear maximum purchase price so you know your limits, confidence to bid without financial uncertainty hanging over you, and credibility with agents who take pre-approved buyers more seriously than those without finance confirmation. Allow 5 to 7 working days for pre-approval once you have submitted all documentation.
What Pre-Approval Actually Means
Pre-approval is conditional approval in principle, confirming the bank is willing to lend you a certain amount. However, this approval is subject to the property being acceptable security (valuation and property type matter), no material changes to your financial situation before the auction, and final credit checks at unconditional approval. Pre-approval is not a guarantee, and the bank must still approve the specific property after the auction.
Satisfying Conditions Before the Auction
Some pre-approval conditions must be cleared before you can bid unconditionally. These typically include proof of deposit funds in your account, valuation of the property you intend to bid on, any employment verification or additional documentation the bank requires, and KiwiSaver withdrawal confirmation if you are using first-home funds. Work with your adviser to ensure all conditions are satisfied before auction day arrives.
Step 2: Do Your Due Diligence (2 to 4 Weeks Before)
Because there is no building inspection or finance condition after the auction, you must complete all due diligence beforehand. Everything you would normally make conditional on must be done in advance.
Property Inspection
A builder's report is essential for any established home and costs $500 to $800. This investment can save you from expensive surprises and should be completed before committing to bid. A LIM report (Land Information Memorandum) from the council reveals consents, drainage, heritage listings, zoning, and any notices affecting the property, costing around $250 to $400. Your solicitor should also review the title for easements, covenants, caveats, or other encumbrances that might affect your use of the property.
Valuation
Most banks require a valuation before providing unconditional finance, and your options vary in cost and accuracy. A desktop valuation uses data without physical inspection, making it quick and cheap but less accurate, suitable only for straightforward properties. A drive-by valuation has the valuer assess from the street combined with data analysis, offering a mid-range option. A full valuation involves physical inspection of the property and is the most accurate option, required for higher LVR loans or unusual properties at a cost of $500 to $800. Use our LVR calculator to understand your deposit position and whether a full valuation will be required.
Legal Review
Have your solicitor review the Sale and Purchase Agreement (which you will sign if you win), the title and any registered interests, any auction-specific conditions, and body corporate records if it is a unit title. This review should happen before the auction, not after, so you know exactly what you are committing to.
Step 3: Set Your Maximum Price (1 Week Before)
Decide your absolute maximum bid before auction day, and commit to it completely. This is not a rough guide but rather a hard limit that you will not exceed under any circumstances.
How to Calculate Your Maximum
Consider what you can afford based on your pre-approved limit minus any property-specific concerns from due diligence. Factor in what the property is actually worth using recent comparable sales, the registered valuation, and your own research. If the builder's report identified issues, subtract estimated repair costs from your maximum. Finally, build in an emotional buffer because auctions are designed to push you past rational limits. Set your maximum when you are calm, not in the heat of bidding.
Write It Down
Literally write your maximum on paper and take it to the auction. When bidding heats up and emotions run high, having that physical reminder helps you stay disciplined and prevents you from exceeding what you can actually afford.
Step 4: Auction Day
Before You Arrive
Bring photo ID and your deposit, which is usually a cheque or bank cheque for 10% of your maximum bid, or confirmation of electronic transfer capability. Arrive early to register as a bidder, bring your written maximum price reminder, and if sending someone to bid on your behalf, ensure they have written authorisation from you.
Auction Terminology
Understanding the language helps you follow what is happening:
| Term | Meaning |
|---|---|
| Reserve | The vendor's minimum acceptable price |
| On the market | Bidding has reached the reserve and the property will sell |
| Passed in | Did not reach reserve and may be negotiable after |
| Vendor bid | Bid placed by the auctioneer on behalf of the vendor (limited and must be declared) |
| Hammer price | The final winning bid |
| Bid increment | The minimum amount bids must increase by |
During the Auction
You can start bidding at any time, with some buyers liking to establish presence early while others wait to see the competition. The auctioneer sets bid increments (often $10,000 or $5,000), and while you can request smaller increments, the auctioneer can refuse. Stay calm and bid confidently, as hesitation can encourage other bidders. Most importantly, when your maximum is reached, stop bidding with no exceptions. The worst auction outcome is winning at a price you cannot really afford.
If You Are the Highest Bidder
When the hammer falls, you must immediately sign the Sale and Purchase Agreement, pay the deposit (typically 10%), and accept that the sale is unconditional with no backing out possible.
Step 5: Post-Auction (If You Win)
Immediately After the Auction
Contact your mortgage adviser and send them the signed Sale and Purchase Agreement immediately. They will begin confirming the bank's unconditional approval, negotiating the best interest rates for your loan, and finalising the loan structure including the term, whether fixed or floating, and any revolving credit portions. Contact your solicitor as well, as they will begin the conveyancing process and coordinate with the vendor's solicitor.
Timeline to Settlement
Standard settlement periods in NZ vary, with auctions often specifying 10 to 20 working days, though some specify longer settlement of 30 to 60 days. Your solicitor and adviser will work within the specified timeframe to ensure everything is ready.
Step 6: The Week Before Settlement
What Is Happening Behind the Scenes
Your bank is issuing loan documents, preparing to transfer funds on settlement day, and may contact you to open linked accounts. Your solicitor is finalising the settlement statement, arranging document signing, and coordinating with the vendor's solicitor on settlement logistics.
What You Need to Do
In the week before settlement, you need to sign loan documents (often electronic now), sign the settlement statement, arrange insurance to start from settlement day (banks require this before they will release funds), and organise your move.
Step 7: The Day Before Settlement
Final Inspection
You are entitled to a pre-settlement inspection to confirm the property is in the same condition as at auction, all chattels listed in the agreement are present, the vendor has vacated if applicable, and no damage has occurred since the auction. If there are problems, contact your solicitor immediately. Settlement can be delayed to resolve issues, though this requires negotiation with the vendor.
Step 8: Settlement Day
What Happens
On settlement day, your bank transfers the loan funds to your solicitor, who adds your deposit and any additional cash before transferring the full purchase price to the vendor's solicitor. The vendor's solicitor confirms receipt, title is transferred to your name, and keys are released to you (often collected from the real estate agent). Settlement usually happens between 11am and 4pm, and you will receive confirmation from your solicitor when everything is complete. Congratulations, you are now a homeowner!
What If the Property Passes In?
If bidding does not reach the reserve, the property is passed in. This is not necessarily bad news because it creates a negotiation opportunity where the highest bidder typically gets first right to negotiate with the vendor and the agent facilitates this conversation. Unlike the auction, you can now include conditions such as finance and building inspection if the vendor agrees. Of course, you can also walk away if the vendor's expectations are unrealistic since you are not obligated to negotiate.
Common Auction Mistakes to Avoid
The first mistake is bidding without pre-approval, which could see you win a property you cannot actually purchase, with serious legal and financial consequences. Skipping due diligence is another major error because no building report means no knowledge of major defects, and you will own the problems. Getting caught up in the moment happens because auctions are emotional by design, but you must stick to your maximum no matter how much you love the property. Not understanding the contract before the auction is also problematic, so have your solicitor review the Sale and Purchase Agreement beforehand. Finally, do not forget about settlement costs. Your deposit is 10%, but you will also need to cover legal fees, valuation, moving costs, and potentially other expenses at settlement.
Your Auction Preparation Checklist
4 to 6 weeks before: Get pre-approved through a mortgage adviser and confirm your deposit is accessible.
2 to 4 weeks before: Order your builder's report and LIM report, arrange the property valuation, and have your solicitor review the title and contract.
1 week before: Set your maximum price in writing, confirm all pre-approval conditions are satisfied, and arrange your deposit via bank cheque or electronic transfer.
Auction day: Bring your ID and deposit, arrive early to register, and stick to your maximum.
After winning: Send the signed agreement to your adviser immediately, confirm insurance from settlement day, and arrange your pre-settlement inspection.
Auctions can feel high-pressure, but with proper preparation, you will approach them with confidence and be ready for whatever happens on the day.
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