New Zealand Home Values Fell a Fifth Straight Month, Dipping Below NZ$800,000

New Zealand's median dwelling value slipped to $797,944 in August, a fifth consecutive monthly fall, with Cotality citing high stock levels and rising mortgage rates.

New Zealand's median dwelling value fell to $797,944 in August 2026, according to the Cotality Home Value Index reported on 4 September. Values were down 0.36% on the month, 1.29% over three months and 0.97% over the year - the fifth consecutive month of decline, and enough to push the national median back below the 800,000 mark.

A slow drift, not a break

The monthly pace is the point. At roughly a third of a percent a month, this is not the kind of move that forces sellers out; it is a market grinding sideways-to-down while buyers take their time. Cotality's chief property economist, Kelvin Davidson, described the mood as caution rather than distress, pointing to economic uncertainty, rising mortgage rates and a high level of properties available for sale. Those three pressures work in the same direction: more choice for buyers, less urgency, and a rising cost of carrying a loan.

The regional split is wide

Annual changes range across nearly six percentage points. Canterbury is up 3.24% over the year and Otago up 2.32%, while Auckland is down 2.58% and Wellington down 2.48%. Bay of Plenty holds a positive 1.59%; Waikato is barely negative at 0.45%. In other words the two largest urban markets are pulling the national figure down while the South Island's main regions are still adding value.

Where the falls are steepest

The sharpest annual declines are in smaller provincial districts rather than the metros: Horowhenua down 6.37%, Otorohanga down 6.15%, Carterton down 5.59%, Tararua down 4.83% and Hastings down 4.35%. Districts of this size have thin transaction volumes, so month-to-month readings there swing more than a national index does - but a run of falls above 4% over a full year is a level shift, not noise.

Reading it against the mortgage market

Rising mortgage rates are the variable most likely to decide whether the drift continues. When the cost of borrowing rises against a backdrop of elevated listings, the immediate effect is on what buyers can bid rather than on what sellers will accept, and the gap shows up first as slower sales and then as lower recorded values. That sequence is consistent with what the index has done since April.

What the index does not say

The Home Value Index measures estimated values across the housing stock, not agreed sale prices, and does not report sales volumes, days on market or the share of listings withdrawn. A 0.97% annual fall is also small relative to the gains of the 2020-2021 cycle; nothing in this release speaks to where values sit against their peak, or to how individual owners' equity positions have moved.

Sources: interest.co.nz (Cotality Home Value Index, August 2026), 4 Sep 2026 https://www.interest.co.nz/property/140097/cotality-says-elevated-stock-levels-and-rising-mortgage-rates-are-making-buyers; NZ Herald (Cotality), Sep 2026 https://www.nzherald.co.nz/business/new-zealand-median-property-values-dip-under-800k-in-august-cotality/2KBEABGSNND4TPVXX5UDCGCDHI/

Market data: New Zealand