The typical asking rate per listing is in the $10's per square foot per year. The South Lyon region is experiencing a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 8% rise in rent.
Compared to the rest of the Metro Detroit market, the South Lyon region has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 2 listings have come on the market, which means leases most likley are going fast. 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 350 sqft. Most properties in this market are approximately 2 floors. Most buildings in this region were built in 1978 and are Class B.