Most listings are in the $10's per square foot per year. The Lafayette region is going through a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 18 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 2,800 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 1 floors. Most buildings in this area were built in 1978 and are Class A.