On average, listings lease in the $20's per square foot per year. The Thornton region is experiencing a an increase in rates. In the last 3 months, the median rate went up $5 per sqft per year. That's a 22% rise in rent.
Compared to the rest of the Denver Metro market, the Thornton region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 13 listings have been listed, which means new listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 market are approximately 2 floors. Most buildings in this market were built in 1986 and are Class B.