The typical asking rate per listing is in the $10's per square foot per year. The Dahlgren region is seeing a a rise in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 8 listings have been posted online, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. 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 1,600 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 1996 and are Class B.