The typical asking rate per listing is in the $20's per square foot per year. The Omaha region is going through a a rise in rates. In the last 3 months, the median rate increased $22 per sqft per year.
Compared to the rest of the Omaha market, the Omaha submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 297 listings have been listed, so you'll want to check back regularly for new listings. About 75% of the listings in the Omaha are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,200 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this region were built in 1984 and are Class B.