Most listings are in the $20's per square foot per year. The Greeley region is going through a a boost in rates. In the last 3 months, the median rate rose $23 per sqft per year.
In the last 90 days, 51 listings have been listed, so you'll want to check back regularly for new listings. About 10% of the available space in the Greeley are subleases, so you will probably have to consider a longer term 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 2,200 sqft. Most buildings in this area are close to 1 floors. Most buildings in this region were built in 1986 and are Class B.