On average, listings lease in the $10's per square foot per year. The Dearborn region is experiencing a a rise in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 25% increase in rent.
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 region.
In the last 90 days, 19 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 89% of the available space in the Dearborn 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,070 sqft. Most properties in this market are approximately 1 stories. Most buildings in this area were built in 1983 and are Class Class B.