Most listings are in the $10's per square foot per year. The Roanoke County submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 9% rise in rent.
In the last 90 days, 33 listings have been posted online, which means office spaces 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,950 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this market were built in 1953 and are Class B.