Most listings are in the $10's per square foot per year. The Damascus region is going through a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 14% decline in rent.
Compared to the rest of the Washington D.C. market, the Damascus submarket 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 come on the market, which means leases most likley are 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,580 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this region were built in 1964 and are Class A.