Most listings are in the $30's per square foot per year. The Central Boulder region is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 43 listings have been made available, so you'll want to check back regularly for new listings. About 14% of the available space in the Central Boulder 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,800 sqft. Most buildings in this area are around 2 stories. Most buildings in this region were built in 1980 and are Class A.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Construction is the dominant industry in this market. Commute by car is the most popular way to get to work amongst Central Boulder folk. Commuting between 30 and 45 minutes a day is the norm for those who opt to reside in this part of town.