The typical asking rate per listing is in the $20's per square foot per year. The Hauppauge region is going through a decline in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 17% decline in rent.
In the last 90 days, 30 listings have come on the market, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 70% of the office spaces in the Hauppauge 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 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 1,660 sqft. Most buildings in this market are approximately 1 floors. Most buildings in this region were built in 1984 and are Class B.