Most listings are in the $10's per square foot per year. The Warren region is going through a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 7% increase in rent.
Compared to the rest of the Metro Detroit market, the Warren submarket has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 49 listings have been listed, so you'll want to check back regularly for new listings. 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 1,380 sqft. Most buildings in this market are approximately 1 floors. Most buildings in this region were built in 1970 and are Class B.