On average, listings lease in the $10's per square foot per year. The Bellevue submarket is going through a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 3% increase in rent.
In the last 90 days, 25 listings have come on the market, which means office spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,720 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this area are around 1 floors. Most buildings in this area were built in 1981 and are Class C.