Most listings are in the $10's per square foot per year. The Christiansburg submarket is seeing a decline in rates. In the last 3 months, the median rate fell $8 per sqft per year. That's a 32% decrease in rent.
In the last 90 days, 3 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 market are approximately 1 stories. Most buildings in this market were built in 1991 and are Class B.