On average, listings lease 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 went up $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the Omaha market, the Omaha submarket has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 181 listings have come on the market, so you'll want to check back regularly for new listings. About 5% of the listings in the Omaha are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,540 sqft. Most buildings in this market are close to 2 stories. Most buildings in this market were built in 1984 and are Class B.