Most listings are in the $10's per square foot per year. The St. Clair County submarket is experiencing a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 25% rise in rent.
Compared to the rest of the Metro Detroit market, the St. Clair County submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 19 listings have been posted online, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,200 sqft. Most properties in this market are approximately 1 floors. Most buildings in this area were built in 1970 and are Class Class A.