The Royal Bank says housing affordability in Canada worsened in the first quarter as the cost of ownership in Vancouver and Toronto increased.
It says rises in ownership costs relative to income were modest in most other areas.
The bank says its aggregate affordability measure rose by 0.8 percentage points to 47.1 per cent in the first quarter, its fourth consecutive quarterly increase.
The measure is the proportion of median pre-tax household income required to pay the cost of mortgage payments, property taxes, and utilities based on the average market price.
Royal Bank says the affordability of a single-detached home in Vancouver hit the worst recorded level for anywhere in Canada due to an "epic surge" in home prices.
The bank's affordability measure for a single-detached home climbed 9.9 percentage points to 119.5 per cent in Vancouver and 1.2 percentage points to 71.7 per cent in Toronto.