The typical asking rate per listing is in the $20's per square foot per year. The Westminster submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% rise in rent.
Compared to the rest of the Denver Metro market, the Westminster region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 38 listings have been posted online, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 3% of the available leases in the Westminster are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,700 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are close to 2 stories. Most buildings in this market were built in 1998 and are Class B.