The typical asking rate per listing is in the $30's per square foot per year. The Fairfax County region is experiencing a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 6% increase in rent.
In the last 90 days, 234 listings have come on the market, so you'll want to check back regularly for new listings. About 4% of the listings in the Fairfax County are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,780 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this region are around 4 stories. Most buildings in this market were built in 1987 and are Class A.