Compared to the rest of the Seattle Metropolitan Area market, the Renton region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 6 listings have been posted online, which means office spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,590 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this area were built in 1983 and are Class A.