The conditions keeping movers on the sidelines are the same ones making the trade-up cheaper
New analysis from Cotality shows the cost of trading up from a three-bedroom to a four-bedroom home has fallen in several of New Zealand's most sought-after markets over the past year — and owner-occupiers may be missing the window.
The trade-up premium — the difference in median values between a three-bedroom and four-bedroom house, representing the additional equity or debt required to make the move — still exceeds $100,000 in most parts of the country.
But the data, drawn from Cotality's Market Trends dataset as at mid-2026, shows that gap has been narrowing in a number of markets.Trade-up transactions typically require coordinated sale and purchase financing, and borrowing capacity assessments need to account for both sides of the transaction.
Where premiums are shrinking
In markets with the largest trade-up gaps — including parts of Auckland, Queenstown-Lakes, Mackenzie, Waipa, Hastings, Whakatane, and Western Bay of Plenty, all with premiums of $290,000 or more — several have seen the gap fall meaningfully over the past year.
Western Bay of Plenty and Auckland City are both down around 7%, Hastings has dropped nearly 12%, and Queenstown-Lakes fell around 9%, as four-bedroom property values have declined more than three-bedroom ones in those areas.
In dollar terms, these reductions are most significant in Auckland and Queenstown-Lakes, where the absolute premiums remain the highest in the country.
At the other end of the spectrum, the smallest trade-up premiums are found in provincial areas including Waitomo, Otorohanga, and Kawerau, where the gap between three- and four-bedroom houses sits below $100,000. Incomes also tend to be lower in these areas, however, meaning a smaller premium does not necessarily translate into a more affordable trade-up.
A quiet market can be a good time to trade up
Overall, some areas have become more favourable over the past year for owner-occupiers looking for extra space, while others have become slightly tougher. In general, quiet periods in the property market can be a good opportunity to trade up — even though many households tend to withdraw when uncertainty is elevated.
Cotality's buyer classification data confirms movers have not yet acted on that opportunity, with relocating owner-occupiers accounting for around 26% of current market activity — below their longer-run share.
Households are often concerned about the price they might get for their current home — and recent sentiment data shows the mood is cautious: the share of buyers expecting prices to rise fell from 46% in March to 29% in May, while those anticipating falls nearly tripled from 6.5% to 16%. But they can overlook the fact that larger properties tend to fall further in value during quiet periods, meaning the net cost of trading up can actually decrease.
The Wellington-Christchurch comparison illustrates the point: Wellington's trade-up premium was around $29,000 higher than Christchurch's in 2021 but has since fallen to approximately $25,000 below it.
Cotality's analysis suggests the window tends to close quickly once sentiment turns — and those who act before the broader mover cohort returns are likely to benefit the most from current premium reductions.
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