On average, listings lease in the $20's per square foot per year. The Altamonte Springs submarket is going through a a boost in rates. In the last 3 months, the median rate went up $24 per sqft per year.
In the last 90 days, 21 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 605% of the listings in the Altamonte Springs are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,100 sqft. Most properties in this region are close to 2 stories. Most buildings in this area were built in 1985 and are Class B.