In the last 90 days, 2 listings have come on the market, which means listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 50% of the available leases in the Tarrytown 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 2,500 sqft. Most buildings in this market are approximately 6 floors. Most buildings in this market were built in 1965 and are Class A.