On average, listings lease in the $20's per square foot per year. The Boulder region is seeing a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 17% increase in rent.
In the last 90 days, 203 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the listings in the Boulder are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,740 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are around 2 stories. Most buildings in this area were built in 1984 and are Class A.