On average, listings lease in the $10's per square foot per year. The Carroll County region is experiencing a a boost in rates. In the last 3 months, the median rate went up $20 per sqft per year.
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 depreciated region.
In the last 90 days, 25 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 176% of the listings in the Carroll County are subleases, so you might be able to find a shorter term or below market rent. 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 810 sqft. Most buildings in this region are around 2 floors. Most buildings in this region were built in 1986 and are Class B.