On average, listings lease in the $10's per square foot per year. The South Lyon region is seeing a an increase in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 17% increase 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 depreciated region.
In the last 90 days, 1 listings have been made available, which means listings 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 1,100 sqft. Most properties in this region are close to 2 stories. Most buildings in this market were built in 1978 and are Class B.