Only 27 building permits were issued last month at Sarnia City Hall, down from 68 the month before.
The permits totalled just over $2.64 million, bringing the year-to-date total to $39.8 million.
The largest permit last month was for just under $970,000 for the addition of a new single-storey building for a proposed shower facility at Cabot Canada on Tashmoo Avenue.
There was just one permit issued in July for a single-family dwelling, for a year-to-date total of seven.