On average, listings lease in the $50's per square foot per year. The Bethesda region is going through a a boost in rates. In the last 3 months, the median rate went up $9 per sqft per year. That's a 20% rise in rent.
Compared to the rest of the Washington D.C. market, the Bethesda submarket has greater rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 23 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 83% of the available space in the Bethesda 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.
The standard measurement for office space in this area is around 1,620 sqft. Most properties in this region are approximately 10 stories. Most buildings in this region were built in 1980 and are Class A.