On average, listings lease 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 rose $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 been listed, which means new availabilities most likley are going fast. 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.
The standard measurement for office space in this area is around 350 sqft. Most properties in this region are around 2 stories. Most buildings in this region were built in 1978 and are Class B.