Compared to the rest of the Washington D.C. market, the Reston submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 65 listings have been posted online, so you'll want to check back regularly for new listings. About 5% of the office spaces in the Reston are subleases, so you will probably have to consider a longer term 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 4,790 sqft, there are still 0 leases below 2,000 sqft. Most properties in this market are around 5 stories. Most buildings in this region were built in 1987 and are Class A.