On average, listings lease in the $20's per square foot per year. The Yakima County region is going through a a boost in rates. In the last 3 months, the median rate rose $6 per sqft per year. That's a 36% rise in rent.
In the last 90 days, 12 listings have come on the market, which means spaces might be going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,850 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1993 and are Class A.