The typical asking rate per listing is in the $20's per square foot per year. The Littleton submarket is going through a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the Denver Metro market, the Littleton submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 8 listings have come on the market, which means new availabilities most likley are 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 2,610 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this market are close to 2 floors. Most buildings in this region were built in 1983 and are Class B.