The average size of houses, townhouses and apartments being built in New Zealand hasn't changed much over the last 30 years, but the mix of homes being built has changed a lot.
There is a common misconception that fewer stand alone houses are being built than in the past, as a move to intensification sees more multi-unit dwellings such as apartments and terrace houses being built.
But that's only partially true.
We are certainly building more multi-unit developments, however stand alone houses are as popular as they have ever been.
According to Statistics NZ, over the last 30 years the number of building consents issued for new stand alone houses peaked in at 22,414 in 2003, then declined steadily to 11,112 in 2011. It has since risen back up to 22,212 in 2020, almost unchanged from the 22,269 issued in 2019.
That means stand alone houses are not just popular, they remain the most popular type of new home being built in this country, accounting for 56.3% of all new dwelling consents issued in 2020.
However stand alone houses accounted for 83.7% of new homes consented 10 years ago. So while they are as popular as ever, most of the growth in new housing that has occurred over the last 10 years has come from other types of housing.
Not only are we building as many stand alone houses as ever, they aren't getting any smaller either.
Thirty years ago the average size of new stand alone houses consented was 153 square metres.
In 2020 it was 192 square metres. The 30 year average was 199 square metres.
So the change in average size over that time is probably less than 5%.
What probably has changed over the last 30 years is that houses are probably more likely to be spread over two levels and on smaller sections than they used to be, particularly in major urban centres.
There is also a popular belief that more and more of us are living in apartments and that those apartments are getting smaller.
But things are not quite what they seem on the apartment front either.
Last year consents were issued for 3739 new apartments, which was just 9.5% of all new dwelling consents.
That was down from the 4762 new apartments consented in 2019 which was 12.7% of all new dwelling consents, and well below the peak of 6143 apartments consented in 2004, which accounted for 19.5% of all new dwelling consents that year.
And on average, apartments don't appear to be getting noticeably smaller.
The average size of apartments consented last year was 104 square metres, compared to the 30 year average of 109 square metres, so any reduction in space has been minor.
The type of housing that has had the biggest impact on our housing landscape over the last 30 years has been low rise, multi-unit dwellings such as terrace houses and home units.
Since 2012 the number of townhouses/units being consented has increased by more than 1000%, rising from 1100 in 2012 to 11,603 in 2020, accounting for 29.3% of all new homes consented in 2020.
Although that's still below the number of stand alone houses being consented, they are catching up fast.
The average size of new townhouses/units has declined over the last few years, but not by much.
Their average size last year was 110 square metres, compared to 118 square metres over the last 30 years.
Those figures all suggest that while the mix of housing types that are being built is changing, the average size of the different types of properties within the mix isn't changing that much.
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