On average, listings lease in the $40's per square foot per year. The Bethesda submarket is going through a decrease in rates. In the last 3 months, the median rate fell $15 per sqft per year. That's a 24% decrease in rent.
Compared to the rest of the Washington D.C. market, the Bethesda region has higher rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 20 listings have been posted online, which means listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 5% of the listings in the Bethesda 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 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 1,520 sqft. Most properties in this market are close to 10 floors. Most buildings in this region were built in 1976 and are Class A.