Compared to the rest of the Seattle Metropolitan Area market, the Tukwila region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 23 listings have been posted online, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 4% of the available leases in the Tukwila are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,460 sqft. Most properties in this area are approximately 2 floors. Most buildings in this market were built in 1979 and are Class A.