Most listings are in the $20's per square foot per year. The Detroit region is experiencing a an increase in rates. In the last 3 months, the median rate increased $22 per sqft per year.
Compared to the rest of the Detroit market, the Detroit submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 105 listings have been listed, so you'll want to check back regularly for new listings. About 65% of the available space in the Detroit are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 9,600 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are approximately 2 floors. Most buildings in this market were built in 1940 and are Class B.