Most listings are in the $10's per square foot per year. The St. Tammany Parish region is going through a decrease in rates. In the last 3 months, the median rate decreased $34 per sqft per year. That's a 63% decrease in rent.
Compared to the rest of the Greater New Orleans Region market, the St. Tammany Parish region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 88 listings have been posted online, so you'll want to check back regularly for new listings. About 1% of the available space in the St. Tammany Parish 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 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 1,800 sqft. Most buildings in this region are around 1 floors. Most buildings in this market were built in 0 and are Class Class B.