On average, listings lease in the $10's per square foot per year. The Center Line submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $16 per sqft per year.
Compared to the rest of the Metro Detroit market, the Center Line region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have been listed, which means listings 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,160 sqft. Most properties in this region are around 1 floors. Most buildings in this market were built in 1965 and are Class Class B.