Most listings are in the $30's per square foot per year. The Fairfax County submarket is going through a an increase in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 220 listings have come on the market, so you'll want to check back regularly for new listings. About 4% of the office spaces in the Fairfax County are subleases, so you will probably have to focus your search on direct office leases. 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 3,710 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are around 4 floors. Most buildings in this market were built in 1987 and are Class A.