Most listings are in the $10's per square foot per year. The Redmond submarket is going through a decrease in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 24% decline in rent.
In the last 90 days, 12 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,760 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this market were built in 2004 and are Class A.