The typical asking rate per listing is in the $30's per square foot per year. The Syosset submarket is seeing a an increase in rates. In the last 3 months, the median rate went up $34 per sqft per year.
In the last 90 days, 8 listings have been listed, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 138% of the available space in the Syosset are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,120 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 1976 and are Class C.