On average, listings lease in the $30's per square foot per year. The Valley Stream submarket is going through a an increase in rates. In the last 3 months, the median rate went up $38 per sqft per year.
In the last 90 days, 3 listings have been listed, which means spaces are probably going fast. 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.
Even though the median size is 3,810 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this region were built in 1983 and are Class B.