The typical asking rate per listing is in the $30's per square foot per year. The Denver County region is experiencing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 2% rise in rent.
In the last 90 days, 382 listings have been made available, so you'll want to check back regularly for new listings. About 5% of the listings in the Denver County 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,700 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are around 4 stories. Most buildings in this region were built in 1974 and are Class B.