The typical asking rate per listing is in the $10's per square foot per year. The Romulus region is seeing a a rise in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 18% rise in rent.
Compared to the rest of the Metro Detroit market, the Romulus submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 6 listings have been posted online, which means office spaces most likley are leasing quickly. 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.
Even though the median size is 18,000 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this region are around 1 floors. Most buildings in this market were built in 1982 and are Class C.