Most listings are in the $20's per square foot per year. The Fair Oaks region is seeing a decrease in rates. In the last 3 months, the median rate fell $7 per sqft per year. That's a 20% decrease in rent.
Compared to the rest of the Washington D.C. market, the Fair Oaks region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 24 listings have been listed, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 4% of the office spaces in the Fair Oaks 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.
The standard measurement for office space in this area is around 1,750 sqft. Most properties in this market are approximately 5 floors. Most buildings in this market were built in 1988 and are Class A.