The typical asking rate per listing is in the $10's per square foot per year. The Brandon submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 9% rise in rent.
In the last 90 days, 4 listings have been listed, which means spaces most likley are 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 1,200 sqft. Most properties in this area are close to 2 stories. Most buildings in this region were built in 2004 and are Class A.