In the last 90 days, 2 listings have been listed, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 1,300% of the available space in the Calvert County are subleases, so you might be able to snag a great spot on a short term. 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 1,200 sqft. Most properties in this area are around 2 floors. Most buildings in this area were built in 1999 and are Class B.