Compared to the rest of the Seattle Metropolitan Area market, the Mercer Island submarket has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 4 listings have been posted online, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 25% of the office spaces in the Mercer Island 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,720 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this region were built in 1984 and are Class B.