The number of building permits issued by Canadian municipalities fell by 10.8 per cent in May to $6-billion, after two straight months of gains.
Analysts had expected a 2-per-cent drop, but Statistics Canada said sharp declines in both residential and non-residential building pulled the numbers lower.
"Lower construction intentions were spread across a wide variety of buildings, such as office buildings, recreational, hotels and warehouses," the agency stated in a release.
The value of residential permits fell 5.3 per cent to $3.7-billion as the number of permits for single-family homes fell.
"This is a very volatile series, and I think the drop in residential permits was a bit of a surprise," said Robert Kavcic, an economist at Bank of Montreal.
Institutional permits fell 21.6 per cent to $690-million, after three months of gains. Lower construction intentions in educational, medical buildings and welfare homes contributed to this decline.
The value of commercial permits fell 35.2 per cent to $988-million in May following a 30.7 per cent increase in April.
Permits rose in the industrial sector, however, up 47.1 per cent to $644-million, the fifth monthly increase in a row mostly because of utility buildings in Ontario and manufacturing buildings in Quebec. Industrial construction intentions rose in eight provinces.