The idea that Canadian residential real estate prices are rising at an unsustainable pace is no longer just a subject for Twitter rants and COVID-era chats with family. The international media are paying attention.

The New York Times described "a soon-to-burst real estate bubble." Reuters declared "Canada's red-hot housing market has become a bonfire."

But while many Canadians worry, the government of New Zealand — a country often likened to Canada for its soaring home prices — is attempting a solution by making it harder to get a mortgage. There's little doubt Bank of Canada officials are keeping a close eye on the New Zealand experience. There are some here who say we should follow suit.

Asked directly at his most recent news conference last month whether Canada would adopt the New Zealand plan, Bank of Canada governor Tiff Macklem appeared dismissive, implying getting the economy back on track after the pandemic recession was more important.

Economy needs growth

"Do we need measures right now with respect to housing?" said Macklem. "Right now, the economy is weak, we're just out of the second wave. I think we need the support — we need the growth we can get."

Just before that news conference, Macklem had told an Alberta audience there were "early signs" of overheating in the residential property market as some people seemed to be buying based on the assumption prices would continue to rise. However, much of the pressure was also due to people looking for more space during COVID-19 lockdown measures, he said.

Monday's latest data from the Canadian Real Estate Association will offer a fresh reading on whether the property boom is slowing.

Later today, the Bank of Canada is expected to announce it is holding interest rates steady at record lows, something critics here and in New Zealand say has helped inflame house prices, and not just in big cities. With signs the global economy is heating up, those concerns may intensify.

It is the fear of speculative investment in housing â€” based on high demand, low rates and rising prices â€” that has prompted action from the New Zealand government and the Reserve Bank of New Zealand (RBNZ), the Kiwi equivalent of the Bank of Canada.

After COVID-19, "the availability of affordable housing — that was the No. 2 issue identified as being most important," national pollster Emanuel Kalafatelis told Radio New Zealand last weekend.

But, for the central bank, a more important concern is the effect on the entire economy if house prices are allowed to continue to soar only to come crashing down once interest rates begin to rise.

"We are now concerned about the risk a sharp correction in the housing market poses for financial stability," RBNZ deputy governor Geoff Bascand said last month. "There is evidence of a speculative dynamic emerging with many buyers becoming highly leveraged."

Fear of property 'fire sales'

In an attempt to prevent a speculative bubble from growing, the RBNZ raised the minimum required for mortgage down payments on March 1, and will raise them again on May 1, including even stricter borrowing requirements for investors.

"A growing number of highly indebted borrowers, especially investors, are now financially vulnerable to house price corrections and disruptions to their ability to service the debt," said Bascand, who is also in charge of financial stability at the central bank. "Highly leveraged property owners, in particular investors, are more prone to rapid 'fire sales' that potentially amplify any downturn."

As of May, most buyers who plan to live in their home will be required to provide a down payment of 20 per cent. Investors will need to put down 40 per cent.