Most listings are in the $30's per square foot per year. The McNair region is experiencing a an increase in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 4% rise in rent.
Compared to the rest of the Washington D.C. market, the McNair region has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 2 listings have come on the market, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 850% of the available leases in the McNair are subleases, so you might be able to snag a great spot on a short term. 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 27,920 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 5 stories. Most buildings in this market were built in 2000 and are Class A.