The survey - of 10,000 licensed real estate agents - also found that the third-biggest motivation for selling, behind "needing the money" and "leaving town", was the break-down of a relationship.
Latest figures from REINZ showed 58.6 per cent of properties sold in October were in the under-$400,000 price bracket.
Peter Thompson of Barfoot & Thompson agreed the first- home market was busy but said the $1m to $2 million market also showed great growth. The first-home buyer's bracket was competitive but he warned buyers not to over-extend as interest rates would only rise.
Savings with second hand
First home owner Greg Skinner researched for five years before choosing to relocate rather than build on his family's dream site.
The Muriwai man found he could get more for his dollar with a second-hand home than a new build.
"Our house is nearly 200sqm and for the same money we would have only got a 100sqm of new house," Skinner said.
"With this option we got a big place with character and we think it is going to be worth more in a few years than a smaller modern house."
The four bedroom bungalow has plenty of space for his partner and two daughters.
The couple had to have it delivered, re-wired, re-plumbed, insulated, plastered and the interior painted - paying half of what a new build would have cost.
A new home based on between $1500 and $2000 a square metre would cost up to $400,000.