On average, listings lease in the $10's per square foot per year. The Lafayette region is experiencing a a boost in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 12% rise in rent.
In the last 90 days, 10 listings have been made available, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 10% of the listings in the Lafayette are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,420 sqft. Most buildings in this area are approximately 2 floors. Most buildings in this area were built in 2001 and are Class B.