Can You Build a Home with a 10% Deposit?

04.08.2025

A 10% deposit can sound like a clear starting point when you are looking at a new home. But before building your plans around that figure, ask what the percentage refers to.

The deposit required by a builder or seller is not automatically the amount your lender needs you to contribute. Both parts need to work for the particular home, agreement and your financial circumstances.

Here is how to make the conversation clearer.

Separate the contract deposit from your own contribution

A contract deposit is a payment under the purchase or building agreement. Its amount, due date and treatment should be set out in the terms.

Your lender separately assesses how much you can borrow and how much of your own money is needed. A 10% contract deposit does not establish that a lender will fund the remaining 90%.

Ask your solicitor to explain the agreement and your lender to confirm the full funding arrangement before committing.

Put the percentage into dollars

For an illustration only, 10% of NZ$800,000 is:

NZ$800,000 × 0.10 = NZ$80,000.

That leaves NZ$720,000 of the price to fund. It does not include other costs and is not a current home offer or an approval example.

Working with actual figures for your home helps you see what is needed at each stage.

Ask when the money is due

Turnkey and progress-payment arrangements can have different schedules. Check the contract deposit, any staged payments and the final payment against what your lender has approved.

Our turnkey and progress payments guide helps you prepare those questions.

Explore first-home support where relevant

Eligible buyers may be able to use a KiwiSaver first-home withdrawal. Ask your provider about the requirements and timing.

The First Home Loan can offer a lower-deposit route for eligible borrowers through participating lenders. Check your circumstances directly with a participating lender.

The First Home Grant is closed to new applications, so do not include a historic grant offer in your budget. Kāinga Ora's annual report records the closure.

Prepare a complete budget

Bring the price, contract documents, deposit schedule and your savings information to the lender conversation. Include legal costs, moving and items outside the package.

Our new-build budget checklist helps you think beyond the deposit itself. New-build lending still requires approval; the home being new does not make that automatic.

Explore available Classic Builders homes and ask your local Classic Builders team for the property documents. From there, your lender and solicitor can help you understand what is workable.