Compared to the rest of the Washington D.C. market, the Herndon region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 15 listings have been posted online, which means new listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 33% of the office spaces in the Herndon are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 14,520 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this area were built in 1987 and are Class B.