Most listings are in the $10's per square foot per year. The Titusville region is going through a a boost in rates. In the last 3 months, the median rate increased $20 per sqft per year.
In the last 90 days, 8 listings have been listed, which means spaces most likley are 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 800 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this area were built in 1985 and are Class A.