Most listings are in the $20's per square foot per year. The Renton region is going through a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 8% decrease in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Renton submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 9 listings have been posted online, which means new listings might be going fast. You'll want to be prepared to make an offer immediately. 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 4,300 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this market are around 2 stories. Most buildings in this market were built in 1983 and are Class A.