The typical asking rate per listing is in the $20's per square foot per year. The Douglas County region is going through a an increase in rates. In the last 3 months, the median rate went up $26 per sqft per year.
In the last 90 days, 21 listings have been listed, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 24% of the available leases in the Douglas County 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,960 sqft. Most buildings in this region are close to 2 stories. Most buildings in this area were built in 1993 and are Class B.