On average, listings lease in the $30's per square foot per year. The Seattle submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 410 listings have been posted online, so you'll want to check back regularly for new listings. About 13% of the available space in the Seattle 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.
Even though the median size is 3,440 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are around 3 floors. Most buildings in this area were built in 1982 and are Class A.