The typical asking rate per listing is in the $30's per square foot per year. The Herndon region is seeing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 4% increase in rent.
Compared to the rest of the Washington D.C. market, the Herndon submarket has greater rates, and you'll need to pay a premium to be in this hot region.
In the last 90 days, 15 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 3,590 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this market are approximately 1 stories. Most buildings in this area were built in 1987 and are Class B.