The typical asking rate per listing is in the $20's per square foot per year. The Dove Valley submarket is going through a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Denver Metro market, the Dove Valley submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 6 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 2,150 sqft. Most buildings in this market were built in 1990 and are Class B.