On average, listings lease in the $20's per square foot per year. The Fredericksburg region is experiencing a a rise in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 10% rise in rent.
Compared to the rest of the Washington D.C. market, the Fredericksburg submarket has smaller rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 16 listings have been posted online, which means new listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 13% of the office spaces in the Fredericksburg 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 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 1,750 sqft. Most properties in this area are close to 2 floors. Most buildings in this region were built in 1978 and are Class B.