On average, listings lease in the $10's per square foot per year. The Farmington region is going through a decline in rates. In the last 3 months, the median rate decreased $6 per sqft per year. That's a 22% decrease in rent.
Compared to the rest of the Metro Detroit market, the Farmington region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 16 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 900 sqft. Most buildings in this market are close to 1 stories. Most buildings in this region were built in 1962 and are Class B.