Most listings are in the $10's per square foot per year. The Spartanburg region is experiencing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 33 listings have been posted online, which means new listings might be going fast. You'll want to be prepared to make an offer immediately. About 3% of the available leases in the Spartanburg are subleases, so you will probably have to consider a longer term lease. 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 1,510 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 1973 and are Class A.