Auction vs Private Treaty vs Tender: How Buying Differs in NZ

How buying a house at auction, by tender, or through private treaty differs in NZ — and how to prepare for each.

Proply Team 4 July 2026

Three Ways to Buy the Same House

In New Zealand, a property can be sold by private treaty (negotiation), auction, or tender — and which method the seller chooses changes how you need to prepare as a buyer. The biggest difference isn't the price you might pay, it's when you're allowed to attach conditions like finance or a building report.

auction gavel representing a property auctionPhoto by Wesley Tingey on Unsplash

Private Treaty

You negotiate directly with the seller and can usually include conditions (finance, building report, LIM). The most forgiving method for buyers who haven't finished their due diligence.

Auction

Public bidding to the highest offer above reserve. No cooling-off period and no conditions — all due diligence must be done before auction day.

Tender

Sealed written offers by a set deadline. You don't see competing offers, and the seller can weigh conditions and settlement terms, not just price.

At auction, you legally commit the moment the hammer falls — there's no building report, finance, or LIM condition to fall back on if something goes wrong afterwards.

Before You Bid or Submit an Offer

Complete due diligence early

For auction and most tenders, your building report, LIM and title check need to happen before bidding, not after.

Get unconditional finance confirmed

A standard pre-approval isn't the same as confirmed, unconditional finance — check with your lender exactly what you have.

Read the auction or tender terms carefully

Some tenders do accept conditional offers — check before assuming you must go in unconditional.

Have your deposit ready

Auction winners are typically expected to pay a deposit immediately, so have this organised beforehand.

Quick Summary

  • Private treaty: most flexible, allows conditions.
  • Auction: unconditional, no cooling-off — do all checks first.
  • Tender: sealed bids; some accept conditions, so read the terms.

Preparing to bid or make an offer?

Whichever method you're buying through, Proply keeps your settlement on track once you win.

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