On average, listings lease in the $10's per square foot per year. The St. John the Baptist Parish region is going through a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year.
Compared to the rest of the Greater New Orleans Region market, the St. John the Baptist Parish region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 4 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 250% of the office spaces in the St. John the Baptist Parish are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this region are close to 1 floors. Most buildings in this region were built in 0 and are Class Class C.