The typical asking rate per listing is in the $30's per square foot per year. The Reston region is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 8% increase in rent.
Compared to the rest of the Washington D.C. market, the Reston submarket has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 14 listings have been posted online, which means new listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 14% of the listings in the Reston 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 available, so finding a space for a small business might be tough.
Even though the median size is 5,410 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this market are approximately 5 stories. Most buildings in this area were built in 1987 and are Class A.