Most listings are in the $20's per square foot per year. The Annapolis submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 8% rise in rent.
Compared to the rest of the Greater Baltimore market, the Annapolis submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 44 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the listings in the Annapolis are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,450 sqft. Most properties in this market are close to 2 stories. Most buildings in this market were built in 1975 and are Class B.