The typical asking rate per listing is in the $20's per square foot per year. The Daytona Beach submarket is going through a a rise in rates. In the last 3 months, the median rate went up $26 per sqft per year.
In the last 90 days, 30 listings have been listed, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 23% of the office spaces in the Daytona Beach 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,470 sqft. Most buildings in this area are close to 2 floors. Most buildings in this region were built in 1979 and are Class A.