On average, listings lease in the $60's per square foot per year. The District of Columbia Municipality region is going through a decline in rates. In the last 3 months, the median rate fell $7 per sqft per year. That's a 11% decline in rent.
Compared to the rest of the Washington D.C. market, the District of Columbia Municipality submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 89 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the available leases in the District of Columbia Municipality are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 5,700 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are around 10 stories. Most buildings in this area were built in 1976 and are Class A.