Most listings are in the $20's per square foot per year. The Eagle County region is experiencing a an increase in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 6% increase in rent.
In the last 90 days, 10 listings have been listed, which means listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 120% of the available leases in the Eagle County are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,480 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area were built in 1997 and are Class A.