On average, listings lease in the $0's per square foot per year. The Rockwall region is experiencing a decline in rates. In the last 3 months, the median rate fell $30 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 5 listings have been made available, which means listings are probably leasing quickly. 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 230 sqft. Most properties in this market are approximately 1 stories. Most buildings in this area were built in 2006 and are Class B.