A new build can look straightforward on the brochure: choose a section, select a plan, sign a contract and wait for the keys. The lending is rarely that simple. Your bank needs confidence not only in your income and deposit, but also in the builder, contract, valuation, timeframes and final value of the home. This new build lending guide explains what lenders look for, so you can make decisions early and avoid costly surprises later.
New build lending guide: start with the type of purchase
The first question is whether you are buying a turnkey home or building from the ground up. Both are new builds, but the lending process can be quite different.
With a turnkey purchase, you generally pay an initial deposit when the contract goes unconditional, then pay the balance at settlement once the home is complete and the title and Code Compliance Certificate are available. From a cash-flow perspective, this can feel similar to buying an existing home. You are not usually making payments throughout construction, but you still need finance approval that accounts for the property being completed at a future date.
A land-and-build package usually involves separate agreements for the land and the construction. You settle on the land first, then the bank releases loan funds in stages as the builder completes agreed milestones. This is known as progress-payment lending. It gives you more control over the build, but requires more planning and paperwork.
There is no universally better option. Turnkey can suit buyers who want simpler timing and do not want to manage progress draws. Building on your own section can offer more choice over the design, finish and builder, although you take on greater responsibility if costs or timeframes change.
Understand your deposit before you sign
Deposit requirements vary between lenders and depend on your full application, including income, existing debts, credit history, the property location and the build contract. A new build may be treated more favourably than an existing property under some lender policies, but that does not mean every borrower will automatically qualify with a small deposit.
Your deposit is more than the money paid to secure the contract. You should also allow for legal fees, valuation costs, council or connection costs that are not included in the contract, moving expenses, window coverings, landscaping and contingency funds. A home advertised as complete may still exclude items you consider essential.
If you are a first-home buyer, KiwiSaver may be available for an eligible purchase, subject to the scheme rules and your circumstances. The timing matters. Funds need to be requested and approved before settlement, so tell your solicitor and adviser early. Do not rely on a deposit figure from a sales agent without checking how it works alongside your finance conditions and available funds.
Why the contract matters to a lender
A bank is lending against a home that may not yet exist, which is why the building contract receives close attention. Lenders commonly want to see a fixed-price contract, detailed plans and specifications, a building consent where applicable, a payment schedule, insurance details and information about the builder.
A fixed-price contract gives more certainty, but read the exclusions and variation clauses carefully. Site works, retaining walls, drainage, driveways, service connections and changes required by council can create extra costs if they are not clearly covered. A low initial price is not always the lowest final cost.
For a land-and-build project, the payment schedule should match genuine construction stages. Typical stages can include foundations, framing, enclosed shell, interior completion and practical completion. Your lender will want to know when funds will be needed and may require evidence that each stage has been completed before releasing the next drawdown.
It is also sensible to understand what happens if the builder is delayed or unable to complete the work. A building guarantee, clear insurance arrangements and independent legal advice can all matter. Finance is one part of protecting yourself. The contract is another.
Valuation: the number that can change your plans
For many new builds, the lender will require a registered valuation. The valuer considers the land, plans, specifications, location and comparable recent sales to estimate the finished value. This figure may be different from your contract price.
If the valuation comes in lower than expected, the bank may calculate its lending limit from the lower value rather than the purchase price. That can leave you needing a larger deposit, a revised loan structure or a conversation with the developer or builder before the contract becomes unconditional.
This is particularly relevant in fast-moving or changing markets. A premium paid for a desirable design, view or development may make sense to you, but a lender needs supportable market evidence. Arrange the valuation at the right point in the process and make any finance condition long enough to receive and assess it properly.
Plan for progress payments and interest costs
With a construction loan, you do not generally receive the full loan amount on day one. The bank advances money as required for the land settlement and build stages. You normally pay interest only on the money that has been drawn down, although the exact structure depends on the lender and your approval.
That can help during construction, but it does not make the build cost-free. Your interest expense rises as more funds are advanced. If you are renting while building, you may be paying rent alongside construction-loan interest. Build this overlap into your budget rather than hoping the project finishes on the original date.
Once the home is complete, the loan is commonly changed to principal-and-interest repayments. That is the point where the full repayment commitment becomes real. Test your budget at a higher interest rate and include rates, insurance, maintenance and any body corporate fees if you are buying a townhouse or apartment.
Keep your financial position steady
Pre-approval is valuable, but it is not a blank cheque. Lenders may reassess your position before final approval, before land settlement or before the final drawdown. A new car loan, increased credit-card limit, change in employment or reduced work hours can affect your borrowing position.
Self-employed buyers and contractors can absolutely obtain new-build lending, but the evidence required may differ. Lenders may look at financial statements, tax returns, business bank statements, contracts, GST records or an accountant’s confirmation. Strong preparation is particularly useful when income varies from month to month.
Keep your deposit trail clear as well. Large transfers from family, overseas accounts or business funds may need to be explained. Providing documents promptly helps prevent a small query becoming a settlement delay.
Questions to ask before going unconditional
Before you commit, make sure you can answer these practical questions: Is the contract truly fixed price, and what is excluded? What happens if the valuation is lower than the contract price? When will each payment be due? How long can the build realistically take? What funds will you need beyond the loan and deposit? And what is your fallback plan if completion is delayed?
For turnkey purchases, also check whether the developer can extend the completion date, what happens if the final product differs from the specifications, and whether the deposit is protected in the way your solicitor expects. For a land-and-build arrangement, clarify who manages variations and how quickly the lender can process each progress draw.
Get lending advice before the excitement takes over
The best time to assess new-build finance is before you fall in love with the show home or pay a reservation fee. A good lending plan looks at your deposit, servicing position, contract type, expected completion date and the lenders most suited to the transaction. It also considers how the loan should be structured once you move in, not just how to get approval today.
Mortgage Time works for you, not one bank. We can help make sense of lender requirements, review the numbers behind a new build and prepare an application that gives your plans the strongest possible start. The right finance should leave room for your new home to be exciting, rather than making every construction update feel like a financial emergency.
A little clarity before signing can give you far more confidence when the plans become a home.
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