Most listings are in the $20's per square foot per year. The Columbia region is seeing a a rise in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 11% increase in rent.
In the last 90 days, 59 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the available space in the Columbia are subleases, so you will probably have to consider a longer term lease. 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 2,410 sqft. Most buildings in this region are close to 2 floors. Most buildings in this market were built in 1970 and are Class B.