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3 Prices

In this section we examine changes in house prices between 2004 and 2008. Figure 1 gives kernel density plots of the distribution of owner-occupied house values for each of waves two, four and six of SoFIE. As described in the previous section asset values provided in these waves are indexed approximately to the first quarters of 2004, 2006 and 2008 respectively.

Figure 1 - Distribution of owner-occupied house values, 2004, 2006 and 2008
Figure 1 - Distribution of owner-occupied house values, 2004, 2006 and 2008.
Source: Statistics New Zealand (SoFIE) data

Owner-occupied house values increased substantially between 2004 and 2008 right throughout the distribution, with the largest change occurring between 2004 and 2006. Indeed the mean house price rose from approximately $280,000 in 2004 to $355,000 in 2006 and $415,000 in 2008.

Growth in owner occupied house values is explored further in Table 1. In particular, for each of the six major regions within SoFIE the change in house values are shown at three different points on the distribution (the lower quartile, median and upper quartile). Two points of interest are immediately apparent. First, house values at all three points on the distribution in Auckland were higher than those of any other region in both 2004 and 2008, however, all other regions experienced greater increases in house values than Auckland did over the period. Second, in all regions the lower quartile experienced stronger growth in house values than the upper quartile.[5]

There are a number of possible reasons for this observation. With various tax incentives on rental property more pronounced in the 2000s than they are now, and rental property typically being toward the lower end of the quality spectrum, this may have stimulated demand more at the bottom end of the distribution. Further, with fixed land prices for example, when building new properties the returns to doing so are likely to be better for larger, better quality houses. If this is the case then the supply of lower quality houses may have increased less than high quality houses, relatively speaking, putting further pressure on lower quartile priced houses. This is consistent with data presented in the Productivity Commission's housing affordability inquiry report, which showed that land prices as a share of house values have increased over time and investment in new houses has tended to come in the form of large and relatively expensive houses (Productivity Commission, 2012).

Table 1 - Distribution of growth in regional house values, 2004 to 2008 Table 1 - Distribution of growth in regional house values, 2004 to 2008
  Lower Quartile Median Upper Quartile
Region 2004 ($) 2008 ($) %age change 2004 ($) 2008 ($) %age change 2004 ($) 2008 ($) %age change
Auckland 230,874 330,649 43 308,466 439,204 42 431,731 595,169 38
Waikato 135,642 234,245 73 192,706 337,742 75 282,588 452,333 60
Wellington 169,086 282,770 67 228,531 358,711 57 326,015 489,797 50
Rest of NI 114,125 190,347 67 176,804 289,031 63 260,232 403,088 55
Canterbury 159,795 248,109 55 213,060 323,665 52 308,376 449,251 46
Rest of SI 113,009 197,633 75 169,933 264,137 55 270,647 377,300 39
New Zealand 150,679 244,863 63 224,940 343,731 53 328,350 483,125 47

Source: Statistics New Zealand (SoFIE) data

Notes

  • [5]This is also true with respect to the median, with the only exception being that of Waikato – 73% versus 75% growth.
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