On average, listings lease in the $20's per square foot per year. The New Braunfels region is going through a decline in rates. In the last 3 months, the median rate decreased $13 per sqft per year. That's a 31% decrease in rent.
Compared to the rest of the Greater Austin market, the New Braunfels submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 9 listings have been posted online, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. 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 1,550 sqft. Most properties in this market are approximately 2 stories. Most buildings in this region were built in 2001 and are Class B.