The ability and sensibility to subdivide your land depends not only on the lot size, but also depends on other factors such as road access, topography, and the resulting value of the stand-alone parcels.
In Warwick, the largest minimun lot size is 5 acres, and for the 4.7 acre lot to stand alone, you would need to apply for a variance through the planning department. To see whether you are in this 5 acre zone, it is quite easy to go to Town Hall, where the building department has a large map, identifying each property in Warwick, and its minimum lot size. Secondly, you would need to see whether the additional lot has appropriate road access. This might be able to be achieved with a long driveway which could create a flag lot in the rear of the road frontage lot.
Also, the topography will pkay a part in whether or not the resulting lot is buildable. If you are on a steep incline, or near wetlands, you might be able to subdivide, but the resulting lot might be worth less than a 9.7 acre lot would benefit someone looking for sheer acreage (ie. to have animals). It would be worth to get a property valuation for before and for after the proposed subdivision. A good professional will be able to guide you, to see if it all makes sense.... more