Most listings are in the $20's per square foot per year. The Longmont region is seeing a a rise in rates. In the last 3 months, the median rate went up $0 per sqft per year. That's a 0% increase in rent.
In the last 90 days, 20 listings have been made available, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. 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 1,150 sqft. Most buildings in this market are around 2 floors. Most buildings in this market were built in 1987 and are Class B.