On average, listings lease in the $20's per square foot per year. The Highlands Ranch submarket is going through a a rise in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% rise in rent.
Compared to the rest of the Denver Metro market, the Highlands Ranch region has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 5 listings have been made available, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 20% of the office spaces in the Highlands Ranch 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.
Even though the median size is 2,740 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 2 floors. Most buildings in this market were built in 2000 and are Class A.