Most listings are in the $20's per square foot per year. The Annapolis region is experiencing a a rise in rates. In the last 3 months, the median rate went up $23 per sqft per year.
Compared to the rest of the Greater Baltimore market, the Annapolis region has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 20 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 5% of the available leases in the Annapolis are subleases, so you will probably have to focus your search on direct office leases. 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 1,180 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1979 and are Class B.