On average, listings lease in the $20's per square foot per year. The Des Moines submarket is seeing a a boost in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 42% increase in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Des Moines region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have been listed, which means new availabilities might be leasing quickly. You'll want to be prepared to make an offer immediately. About 50% of the available space in the Des Moines 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 6,200 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1984 and are Class B.