In the last 90 days, 4 listings have been posted online, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 50% of the available space in the Glen Cove 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 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 sqft. Most buildings in this region are approximately 3 stories. Most buildings in this area were built in 1989 and are Class A.