The typical asking rate per listing is in the $30's per square foot per year. The Kent submarket is going through a a rise in rates. In the last 3 months, the median rate increased $12 per sqft per year. That's a 63% increase in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Kent submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 5 listings have been made available, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 40% of the office spaces in the Kent 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.
Even though the median size is 4,610 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 1986 and are Class A.