Asked for the most expensive house "flipped" recently, he named a Royal Oak property.
The property on Raurenga Ave was sold for $1.95 million on 30 August 2016. That settled on 7 November, 2016. It sold again for $2.786m, with a profit of $836,000, on 7 June 2017.
Barfoots advertised this property as a "blast from the past", on a 1077sq m site with a four-bedroom family bungalow, in the mixed housing urban zone.
"Subject to council approval, there are development opportunities to build four freestanding new homes, six terrace houses or nine-plus large three-level apartments with basement garaging. There are even concept plans for you to view. A great location never goes out of style, and this popular position is close to Royal Oak Mall, bus routes, schools, One Tree Hill and Cornwall Park," said Barfoot's advertising.
Goodall defined "flipping" as selling twice within a year for a profit, and said it was far more prevalent last decade.
"An interesting reference point is to compare to the previous period of significant growth witnessed in the lead-up to the end of 2007, when there was over 10,000 sales each year turning a profit in less than 12 months, which was between about 7 per cent and 8 per cent of all sales each year," he said.
In 2015, the previous Government introduced the Bright Line Test, which means that in most cases tax must be paid on profits made from selling a residential property within two years of purchase. The current Government has announced an extension, so the tax will apply to properties bought and sold within five years.
A capital gains tax on residential property - particularly investment properties - has long been advocated by some, and could see profits from flipping taxed at the flipper's overall tax rate, without any set time limit.
In general, says Inland Revenue: "If you're selling a residential property and one of your intentions when you bought the property was to sell it, then you'll have tax to pay on any profit you make from its resale.
"The tax you pay depends on four things: your intent when you purchased; your history of buying and selling; whether you're in or associated with the property industry; whether you buy and sell a property within two years."
Last March, the Herald reported how New Zealand's real estate watchdog was ramping up its crackdown on house-flipping, by investing in new technology which allows it to track when properties have been quickly re-sold for huge profits.
The move allowed the Real Estate Authority to proactively chase agents who are parties in such transactions, without relying on complaints from the public.
A Mount Maunganui property which sold twice within five months made a gross profit of half a million dollars for a local couple, the Bay of Plenty Times reported this month.
This property was one of nearly 100 in the Western Bay of Plenty that was "flipped" for profit within a 12-month period.
The local man who flipped the property, and did not want to be named, said the apartment on The Mall had a considerable amount of time and money spent on it.