Most listings are in the $10's per square foot per year. The Roanoke County region is going through a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 17% decrease in rent.
In the last 90 days, 43 listings have been made available, so you'll want to check back regularly for new listings. 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 1,620 sqft. Most properties in this area are around 2 floors. Most buildings in this area were built in 1953 and are Class B.