“When combined with rigid supply and sustained demand from China, this has produced an ideal setting for excesses in house prices,” it said.
“The situation is fragile for the most overvalued housing markets. A sharp increase in supply, higher interest rates or shifts in the international flow of capital could trigger a major price correction at any time.”
Other cities with a housing bubble risk include Stockholm, Munich, San Francisco, Zurich, Paris, Geneva, Tokyo and Frankfurt.
Melbourne was not flagged as a risk in the report.