Most listings are in the $20's per square foot per year. The Jefferson Parish region is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Greater New Orleans Region market, the Jefferson Parish region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 103 listings have been posted online, so you'll want to check back regularly for new listings. About 70% of the office spaces in the Jefferson Parish are subleases, so you might be able to sign a shorter term by taking over a previous 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 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 0 and are Class B.