The typical asking rate per listing is in the $10's per square foot per year. The Carroll County region is going through a an increase 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 Greater Baltimore market, the Carroll County submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 16 listings have been listed, which means new listings might be leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,500 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this region were built in 1994 and are Class B.