Most listings are in the $20's per square foot per year. The Columbia 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 3% increase in rent.
In the last 90 days, 31 listings have been made available, which means new listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 6% of the available space in the Columbia are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,740 sqft. Most buildings in this region are around 2 stories. Most buildings in this area were built in 1997 and are Class A.