This information would have to be obtained by the Planning Board of the Town of Esopus, because of the size of the lot by definition it is large enough to be subdivided but subdivisions would need to be approved through the Planning Board. Have you seen the property? I suggest that first you take a look at the property and the maps of the property. If you are interested in pursuing it further after seeing it your Realtor can help you getting the full answer to your questions.
Best of Luck!