On average, listings lease in the $30's per square foot per year. The Burien submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $13 per sqft per year. That's a 70% increase in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Burien submarket has higher rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 2 listings have come on the market, which means new availabilities are probably leasing quickly. 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.
The standard measurement for office space in this area is around 960 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this area were built in 1980 and are Class B.