On average, listings lease in the $20's per square foot per year. The Chantilly submarket is going through a an increase in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 7% increase in rent.
Compared to the rest of the Washington D.C. market, the Chantilly submarket has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 16 listings have been made available, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 3,310 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are close to 2 floors. Most buildings in this region were built in 1997 and are Class A.