Most listings are in the $20's per square foot per year. The Hayden submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $23 per sqft per year.
In the last 90 days, 2 listings have been made available, which means new listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 550% of the available leases 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,770 sqft. Most properties in this area are approximately 1 floors. Most buildings in this market were built in 2004 and are Class Class A.