The typical asking rate per listing is in the $10's per square foot per year. The Dearborn region is going through a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year.
Compared to the rest of the Metro Detroit market, the Dearborn region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 19 listings have been made available, which means listings might be going fast. You'll want to be prepared to make an offer immediately. About 68% of the available space in the Dearborn are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,110 sqft. Most properties in this area are around 1 stories. Most buildings in this market were built in 1983 and are Class Class B.