On average, listings lease in the $10's per square foot per year. The Sioux Falls region is experiencing a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 13% rise in rent.
In the last 90 days, 75 listings have been posted online, so you'll want to check back regularly for new listings. About 4% of the office spaces in the Sioux Falls are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,000 sqft. Most properties in this area are close to 2 stories. Most buildings in this area were built in 1990 and are Class A.