Most listings are in the $20's per square foot per year. The Mountlake Terrace region is seeing a a boost in rates. In the last 3 months, the median rate rose $29 per sqft per year.
Compared to the rest of the Seattle Metropolitan Area market, the Mountlake Terrace submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 4 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,550 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are approximately 3 floors. Most buildings in this market were built in 1989 and are Class A.