The typical asking rate per listing is in the $20's per square foot per year. The Evergreen submarket is going through a decline in rates. In the last 3 months, the median rate fell $10 per sqft per year. That's a 30% decrease in rent.
Compared to the rest of the Denver Metro market, the Evergreen submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 18 listings have come on the market, which means office spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 6% of the office spaces in the Evergreen 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 960 sqft. Most properties in this market are close to 3 floors. Most buildings in this region were built in 2000 and are Class A.