Legal & Transactional

Sale and Purchase Agreement

The legally binding contract between buyer and seller that sets out all the terms and conditions for a property transaction in New Zealand.

What is a Sale and Purchase Agreement?

The sale and purchase agreement is the core legal document in any NZ property transaction. The standard form used by most real estate agents is published by the Auckland District Law Society (ADLS) and the Real Estate Institute of New Zealand (REINZ). It covers the purchase price, settlement date, conditions, chattels included, and the rights and obligations of both parties.

The agreement typically starts as a conditional contract — the buyer includes conditions such as obtaining finance, a satisfactory building inspection, a LIM report, or a due diligence clause. Once all conditions are satisfied (or waived), the agreement becomes unconditional and both parties are legally committed.

While the standard ADLS/REINZ form is widely used, additional clauses can be added to address specific situations. It's strongly recommended that your lawyer reviews the agreement before you sign, though in practice many buyers sign at open homes and have their lawyer review it afterwards.

Why It Matters for Due Diligence

The sale and purchase agreement defines your legal rights and obligations. Getting the conditions right is critical — they are your safety net. Common conditions include finance, building inspection, LIM, toxicology (for methamphetamine testing), and due diligence.

Never sign an agreement without understanding the conditions and timeframes. If you're unsure, ask your lawyer to review it before you sign. Once the agreement goes unconditional, you are legally committed to buying the property, and pulling out can result in the seller keeping your deposit and claiming further damages.

How to Check

Your lawyer or conveyancer should review the agreement before you sign, or at minimum, as soon as possible after signing. They will check the conditions, timeframes, chattels list, title details, and any special clauses. The ADLS/REINZ standard form is available from real estate agents and lawyers.

Frequently Asked Questions

Can I back out of a sale and purchase agreement?

While the agreement is conditional, you can withdraw if a condition is not satisfied (e.g. you can't get finance). Once unconditional, you are legally bound. Withdrawing after going unconditional can mean losing your deposit and facing a damages claim.

Do I need a lawyer before signing?

Ideally yes. While many buyers sign agreements at open homes, it's best practice to have your lawyer review the agreement first. At minimum, have your lawyer review it immediately after signing — they can advise on the conditions and timeframes.

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