On average, listings lease in the $20's per square foot per year. The Washington D.C. region is seeing a decrease in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 9% decline in rent.
In the last 90 days, 1193 listings have been listed, so you'll want to check back regularly for new listings. About 2% of the available space in the Washington D.C. 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 2,922 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are approximately 4 stories. Most buildings in this region were built in 1986 and are Class A.