On average, listings lease 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 increased $39 per sqft per year. That's a Inf% rise in rent.
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, 3 listings have come on the market, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 5,000 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this market were built in 2007 and are Class B.