Most listings are in the $20's per square foot per year. The Baltimore County submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 5% increase in rent.
Compared to the rest of the Greater Baltimore market, the Baltimore County submarket has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 186 listings have been posted online, so you'll want to check back regularly for new listings. About 6% of the listings in the Baltimore County are subleases, so you will probably have to consider a longer term lease. 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 2,410 sqft. Most properties in this area are around 2 stories. Most buildings in this area were built in 1986 and are Class B.