Most people assume you need a rising market to make a property move worthwhile.
If you have been thinking about upsizing but watching the New Zealand property market with uncertainty, you are not alone. Many homeowners are sitting on the sidelines, waiting for clearer signals before making a move. But when it comes to upsizing, a flat or softly declining market can actually tilt the numbers in your favour – if you understand how the maths works.
When most people think about upsizing, they focus on what their current home is worth. But the smarter question is: what is the difference between what I will sell for and what I will pay?
In a rising market, both prices climb together. In a flat or falling market, both soften. Because you are buying at a higher price point than you are selling, the dollar saving on the purchase side is typically larger than the reduction in what you receive for your existing home.
According to Cotality’s April 2026 data, national median property values are down 1.3% over the past year and still sitting around 17% below their 2021 peak. Auckland has seen steeper falls, with median values down 3.4% over 12 months. To put that in practical terms: if you are selling a $900,000 home to buy a $1.3 million one, a 3% market-wide softening means you receive roughly $27,000 less on the sale, but you could save around $39,000 on the purchase. That $12,000 net gain is real money, and it gets larger the bigger the price gap between your current and target home.
According to Cotality, the property market in early 2026 is characterised by caution on both sides of the transaction. Sales volumes fell for the third consecutive month in March, and total listings remained elevated at around 31,000 nationally.
Buyers have genuine negotiating power right now, and vendors in many areas are adjusting price expectations accordingly.
For an upsizer, this dynamic is worth understanding. If you are purchasing a new home then you are likely to have some leverage when you are negotiating the deal. On the flip-side, if you are also selling your current home, your buyers will also have that leverage… Having a clear strategy before you go to market is essential, whether that means making your purchase subject to sale, or timing your listing carefully.
It is also worth knowing that around 58% of New Zealand’s existing mortgages are due to reprice within the next 12 months, according to Reserve Bank data. That means a significant number of households will be reassessing their financial position in the near term, some will move, some will not. That kind of turnover in the market can create well-priced opportunities for buyers who are prepared and pre-approved.
Market timing is genuinely difficult to gauge, and anyone who tells you otherwise is oversimplifying. What matters far more is whether you are financially ready to move: whether your equity position works, whether your income comfortably supports a larger mortgage, and whether the property you are targeting meets your needs for the next five to ten years.
The banks’ lending terms will determine what borrowing is available to you. Getting mortgage pre-approval before you list your current home is not just sensible, it means you can move quickly and confidently when the right property comes up.
For most New Zealanders, the family home is their largest financial asset. Getting the strategy right on a move of this scale is worth more than getting the timing perfect.
If you are considering upsizing and want to understand how the numbers look for your specific situation, a conversation with your Threefold adviser is a straightforward next step.
The content of this article should not be taken as financial advice, or a recommendation of any financial product. These insights are based on current economic commentary, market pricing for interest rates, and our personal opinion. Threefold is not liable or responsible for any information, omissions, or errors present.
For many homeowners, yes. A flat or softly declining market can actually favour upsizers because the dollar saving on a more expensive purchase is typically larger than the reduction in sale price. With national values down around 1.3% over the past year and listings elevated, buyers have more negotiating room than they have had for some time. The key is going in financially prepared.
It depends on your financial position and risk tolerance. Selling first gives you certainty around your budget and removes the pressure of carrying two properties. Buying first can mean you secure the right home without a deadline, but requires confidence in your ability to sell and may involve bridging finance. A mortgage adviser can help you assess which approach suits your situation.
The Reserve Bank of New Zealand’s loan-to-value ratio (LVR) rules set limits on how much banks can lend relative to a property’s value. For owner-occupiers, banks are generally restricted from lending more than 80% of the property’s value on a significant portion of new lending. If you have built up equity in your current home, upsizing within these limits is often more straightforward than a first purchase. Your mortgage adviser can confirm exactly what applies to your circumstances.
The starting point is understanding your current equity position, your household income, and what a larger mortgage would cost you at current interest rates. From there, a mortgage pre-approval will give you a realistic lending ceiling. Our team can help you consider the broader picture, including how a larger mortgage fits with your KiwiSaver, insurance, and longer-term financial goals.