The typical asking rate per listing is in the $30's per square foot per year. The Boswell's Corner region is going through a a rise in rates. In the last 3 months, the median rate rose $40 per sqft per year.
Compared to the rest of the Washington D.C. market, the Boswell's Corner submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 7 listings have been posted online, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 43% of the office spaces in the Boswell's Corner are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 4,410 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this region are close to 3 floors. Most buildings in this region were built in 2011 and are Class A.