On average, listings lease in the $20's per square foot per year. The Spartanburg submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $20 per sqft per year.
In the last 90 days, 33 listings have been posted online, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 258% of the available leases in the Spartanburg are subleases, so you might be able to snag a great spot on a short term. 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 1,800 sqft. Most buildings in this region are around 2 floors. Most buildings in this region were built in 1973 and are Class A.