The Economist found house prices fell in 12 of the 21 countries tracked and continue to plummet in Ireland. New Zealand prices were up 3.3 per cent compared to a year ago.
After dropping by a third from their 2006 peak, prices in America now stand at 19 per cent below fair value, the magazine found.
ASB chief economist Nick Tuffley said house prices here had stayed high compared to incomes and would likely continue to rise.
"We may look like we're over-valued and high compared to other countries. We're still likely to see in the short term a little more house-price pressure coming through. We don't have an oversupply of housing in general and we have some fundamental supply constraints in places like Auckland and Christchurch."
Barfoot & Thompson managing director Peter Thompson said house prices here were set by a free, open and transparent market.
"It's what a person is prepared to sell for and to buy for," he said. "I admit it's making it harder for people to get into property. Getting more properties on the market will stabilise it. We're coming into spring so we might start seeing that."
Last month's Real Estate Institute data showed 5907 dwellings sold, 20 per cent up on July last year. Turnover is rising and now stands at 69,222 sales for the past year, the highest total since February 2010.
Last week, a two-bedroom Sandringham house valued at $720,000 fetched $1.1 million at auction. The 1940s weatherboard house at 23 Watea Rd surprised listing real estate agent Christine Wooding at Barfoots. Expectations were more around the mid-$800,000s, she said.
Developers bid against one another for the property, which is on a section of more than 800sq m. She predicted townhouses would be built there.
MOST OVER-VALUED HOUSES COMPARED TO LONG-RUN AVERAGE
* Hong Kong 64%
* Singapore 58%
* Belgium 55%
* Canada 54%
* New Zealand 44%
* France 43%
* Australia 36%
* Britain 20%
MOST OVER-VALUED HOUSE PRICES COMPARED TO RENTS
* Canada 77%
* New Zealand 66%
* Belgium, Hong Kong 64%
* Singapore 58%
* France 49%
* Australia 45%
* Sweden 32%
* Spain 22%
MOST OVER-VALUED HOUSES COMPARED TO INCOMES
* Belgium 47%
* France 38%
* Netherlands 33%
* Canada 32%
* Australia 26%
* New Zealand, Spain 22%
* Britain 17%
* Italy 15%
Source: The Economist global house price index
* An earlier version of this story has been amended because the second table headline incorrectly read as 'MOST OVER-VALUED RENTS COMPARED TO HOUSE PRICES'.