The typical asking rate per listing is in the $50's per square foot per year. The Vail region is going through a a rise in rates. In the last 3 months, the median rate increased $53 per sqft per year.
In the last 90 days, 0 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About Inf% of the office spaces in the Vail are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,040 sqft. Most buildings in this area were built in 1978 and are Class A.