Most listings are in the $10's per square foot per year. The Hayden submarket is experiencing a decline in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 25% decline in rent.
In the last 90 days, 2 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 300% of the office spaces in the Hayden are subleases, so you might be able to snag a great spot on a short term. 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 1,500 sqft. Most buildings in this region are approximately 1 stories. Most buildings in this area were built in 2004 and are Class Class A.