The typical asking rate per listing is in the $10's per square foot per year. The Romulus region is experiencing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 18% increase in rent.
Compared to the rest of the Metro Detroit market, the Romulus region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 5 listings have been posted online, which means office spaces might be going fast. You'll want to be prepared to make an offer immediately. 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 2,390 sqft. Most buildings in this region are approximately 1 floors. Most buildings in this area were built in 1982 and are Class C.