On average, listings lease in the $20's per square foot per year. The Merriam region is experiencing a decrease in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 10% decline in rent.
In the last 90 days, 14 listings have been posted online, which means listings most likley are 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.
Even though the median size is 4,110 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 3 floors. Most buildings in this area were built in 1980 and are Class B.