Most listings are in the $30's per square foot per year. The Melville region is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 8% increase in rent.
In the last 90 days, 29 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 10% of the available space in the Melville 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.
Even though the median size is 3,990 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are approximately 3 stories. Most buildings in this area were built in 1980 and are Class A.