The typical asking rate per listing is in the $10's per square foot per year. The Salisbury 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 9% increase in rent.
In the last 90 days, 17 listings have been posted online, which means leases might be going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,800 sqft. Most buildings in this area are around 2 floors. Most buildings in this area were built in 1985 and are Class B.