Most listings are in the $30's per square foot per year. The Lone Tree submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 14% rise in rent.
Compared to the rest of the Denver Metro market, the Lone Tree region has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 7 listings have been made available, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. About 114% of the office spaces in the Lone Tree are subleases, so you might be able to find a shorter term or below market rent. 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 2,000 sqft. Most buildings in this region are around 1 stories. Most buildings in this region were built in 2003 and are Class A.