The typical asking rate per listing is in the $10's per square foot per year. The Christiansburg region is going through a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 3 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 100% of the available leases in the Christiansburg are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 4,300 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this region are around 1 floors. Most buildings in this area were built in 1991 and are Class B.