On average, listings lease in the $20's per square foot per year. The Martha Lake submarket is going through a a boost in rates. In the last 3 months, the median rate rose $23 per sqft per year.
Compared to the rest of the Seattle Metropolitan Area market, the Martha Lake region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 0 listings have been listed, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About Inf% of the listings in the Martha Lake are subleases, so you might be able to find a shorter term or below market rent. 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 8,000 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are close to 1 stories. Most buildings in this region were built in 1984 and are Class C.