The typical asking rate per listing is in the $10's per square foot per year. The Broomfield submarket is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 6% decrease in rent.
Compared to the rest of the Denver Metro market, the Broomfield submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 25 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 8% of the available leases in the Broomfield are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 3,500 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this region are approximately 3 floors. Most buildings in this region were built in 1999 and are Class A.