Most listings are in the $20's per square foot per year. The Washington region is seeing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 998 listings have been posted online, so you'll want to check back regularly for new listings. About 7% of the available space in the Washington are subleases, so you will probably have to consider a longer term 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 3,340 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 1984 and are Class A.