The typical asking rate per listing is in the $20's per square foot per year. The Detroit region is experiencing a a boost in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 29% increase in rent.
Compared to the rest of the Detroit market, the Detroit region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 105 listings have been posted online, so you'll want to check back regularly for new listings. About 1% of the listings in the Detroit are subleases, so you will probably have to consider a longer term lease. 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 8,490 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this region were built in 1938 and are Class B.