On average, listings lease in the $20's per square foot per year. The Powell submarket is going through a a rise in rates. In the last 3 months, the median rate rose $20 per sqft per year.
In the last 90 days, 3 listings have been listed, which means leases 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 1,590 sqft. Most properties in this region are approximately 2 stories. Most buildings in this area were built in 1998 and are Class B.