Most listings are in the $0's per square foot per year. The White Oak submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $16 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 0 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About NaN% of the available space in the White Oak 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.
The standard measurement for office space in this area is around sqft. Most buildings in this area were built in 2004 and are Class C.