Most listings are in the $20's per square foot per year. The Fort Collins submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 12% rise in rent.
In the last 90 days, 38 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 11% of the available leases in the Fort Collins are subleases, so you might be able to find a shorter term or below market rent. 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 1,230 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this region were built in 1985 and are Class B.