The typical asking rate per listing is in the $10's per square foot per year. The Redmond region is going through a an increase in rates. In the last 3 months, the median rate rose $5 per sqft per year. That's a 32% increase in rent.
In the last 90 days, 21 listings have been posted online, which means new availabilities might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 10% of the available leases in the Redmond are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,690 sqft. Most properties in this area are close to 2 stories. Most buildings in this area were built in 2004 and are Class A.