Most listings are in the $20's per square foot per year. The College Station region is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 10 listings have come on the market, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 10% of the available space in the College Station are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 6,300 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this region are around 3 floors. Most buildings in this market were built in 2005 and are Class A.