Most listings are in the $20's per square foot per year. The Snohomish County region is going through a a boost in rates. In the last 3 months, the median rate rose $9 per sqft per year. That's a 46% rise in rent.
In the last 90 days, 90 listings have been listed, so you'll want to check back regularly for new listings. About 74% of the listings in the Snohomish County are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,090 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this area were built in 1987 and are Class B.