Most listings are in the $20's per square foot per year. The Ken Caryl region is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 17% increase in rent.
Compared to the rest of the Denver Metro market, the Ken Caryl region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 15 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. About 7% of the available leases in the Ken Caryl are subleases, so you will probably have to focus your search on direct office leases. 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 1,640 sqft. Most buildings in this area are close to 2 floors. Most buildings in this market were built in 2002 and are Class B.