The typical asking rate per listing is in the $30's per square foot per year. The La Plata County region is going through a a rise in rates. In the last 3 months, the median rate went up $38 per sqft per year.
In the last 90 days, 5 listings have been listed, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 60% of the office spaces in the La Plata 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 1,030 sqft. Most buildings in this area are approximately 1 floors. Most buildings in this market were built in 1977 and are Class B.