Compared to the rest of the Denver Metro market, the Castle Rock region has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 18 listings have been posted online, which means new availabilities are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, 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 region are approximately 2 stories. Most buildings in this market were built in 1996 and are Class B.