Compared to the rest of the Washington D.C. market, the Dulles Town Center region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 3 listings have been made available, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. 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 5,880 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are approximately 1 floors. Most buildings in this area were built in 2001 and are Class A.