Compared to the rest of the Washington D.C. market, the Bull Run submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 37 listings have been posted online, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 43% of the listings in the Bull Run are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,620 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 1988 and are Class B.