The typical asking rate per listing is in the $10's per square foot per year. The Bellevue submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $16 per sqft per year.
In the last 90 days, 4 listings have been made available, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,810 sqft. Most buildings in this region are around 2 floors. Most buildings in this area were built in 2002 and are Class A.