The typical asking rate per listing is in the $30's per square foot per year. The Issaquah region is going through a a boost in rates. In the last 3 months, the median rate went up $9 per sqft per year. That's a 30% increase in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Issaquah submarket has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 1 listings have come on the market, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 700% of the listings in the Issaquah are subleases, so you might be able to snag a great spot on a short term. 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 820 sqft. Most buildings in this market are around 2 stories. Most buildings in this market were built in 1992 and are Class A.