The typical asking rate per listing is in the $30's per square foot per year. The Castle Rock submarket is going through a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 10% increase in rent.
Compared to the rest of the Denver Metro market, the Castle Rock region has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 22 listings have been listed, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,300 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1996 and are Class B.