On average, listings lease in the $10's per square foot per year. The Carroll County region is experiencing a an increase 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 Greater Baltimore market, the Carroll County region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 26 listings have been made available, which means office spaces most likley are 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,150 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1994 and are Class B.