On average, listings lease in the $20's per square foot per year. The Shreveport region is going through a a boost in rates. In the last 3 months, the median rate rose $23 per sqft per year.
In the last 90 days, 32 listings have been made available, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 78% of the listings in the Shreveport are subleases, so you might be able to snag a great spot on a short term. 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 1,600 sqft. Most properties in this area are around 1 stories. Most buildings in this market were built in 0 and are Class Class B.