On average, listings lease in the $20's per square foot per year. The Parker region is experiencing a a rise in rates. In the last 3 months, the median rate went up $25 per sqft per year.
Compared to the rest of the Denver Metro market, the Parker region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 10 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 130% of the available space in the Parker are subleases, so you might be able to snag a great spot on a short term. 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 1,500 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 2004 and are Class B.