The typical asking rate per listing is in the $20's per square foot per year. The Centennial submarket is going through a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the Denver Metro market, the Centennial submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 65 listings have come on the market, so you'll want to check back regularly for new listings. About 3% of the listings in the Centennial are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 2,090 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this area were built in 1985 and are Class B.