The price premiums new dwellings have traditionally commanded over existing dwellings may be about to shrink, according to property data company CoreLogic.
CoreLogic separated the median price data for new dwellings - those that have just been sold for the first time, from those that have been sold at least once before - existing dwellings, and compared them.
This shows new dwellings usually sell at a price premium compared to older properties, and the premium can be significant.
"This may not capture all new builds, such as some occasions where households have bought a section and commissioned the dwelling project themselves, but it's still a decent indicator of long term trends," CoreLogic's NZ Chief Economist Kelvin Davidson says.
Over the 22 years from 2002 to 2024 the price premium for new builds has shown considerable volatility, hitting a high of 15% around 2019, but had slipped into negative territory at -2% from 2009 - 2011, which meant new builds were slightly cheaper than existing builds over that time. (See the chart below).
"The percentage premium is now currently at average levels of around 6%, but it's quite significant in dollar terms, ranging from around $40,000 to about $50,000 over the past year or so," the report says.
"On February's data, existing properties sold for $768,050 [median price] versus new builds at $811,000."
However the report warns the current price premium may not last.
"Looking ahead, you'd now tend to think that the new build premium could start to erode again in the next year or two," the report says.
"For a start, as in 2009-11, with building work slowing and construction costs now much flatter, there's likely to be less heat in new build pricing."
"On that note, there also appear to be some difficulties for developers in securing pre-sales for the new build projects at present, possibly hinting at some near term discounting," says CoreLogic.
"Meanwhile, more listings coming to the market may also mean that prospective house buyers can already find what they want among the existing stock, and not have to go down the path of buying or building a new property."
"In addition, of course, mortgage interest deductibility is set to even out regardless of property age, at 80% from 1 April 2024 and 100% from the same date next year. At the margin, this also erodes the benefits of a new build relative to existing for investment buyers."
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CoreLogic Median Price of New Residential Properties v Existing Residential Properties
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