Buying guide

Understanding a Sale & Purchase Agreement in NZ

You can’t buy or sell a house in NZ without both parties signing a sale and purchase agreement.

Hannah Hilliam
Last updated: 28 May 2026 | 2 min read
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A Sale & Purchase Agreement is the legally binding contract for any NZ property transaction, making legal advice essential before signing. It details the price, deposit, chattels, and key dates like the unconditional and settlement dates.

An agreement can be conditional, subject to finance or a building report. Once all conditions are met, the agreement becomes unconditional, legally committing both parties to the sale. Failure to complete an unconditional deal can lead to significant financial penalties.

What is a sale and purchase agreement?

Before you sign a sale and purchase agreement, make sure you have all these things checked.

What does a sale and purchase agreement include?

Both buyers and sellers can add conditions to a sale and purchase agreement.

Conditional vs. unconditional agreements

Checking your pre-settlement obligations

What if you can’t meet the conditions?

Author

Hannah Hilliam Hannah Hilliam
Content Writer