First and foremost, it is vitally important to understand what a property can be used for, and what the highest and best use of the property is. With a simple phone call to your local planning & zoning department, most offices can give you the answer to this question in a matter of seconds. Once you know the zoning classification (e.g. – residential, mixed-use, commercial, industrial, agricultural, etc.), ask them to give you some examples of what type of property would be allowed under each of these particular zoning classifications. They may even give you some ideas that you hadn't previously thought of. Once you understand the most ideal use of the property – you can quickly determine whether it will fit your needs (or the needs of those you intend to market the property to).
Hi, Viz. That really is going to depend on your local laws and any possible restrictions related to the land, as well as the best size to make the new lots appealing to builders and home owners in your local market. You should get in touch with local real estate experts in your market, like a surveyor, attorney or real estate agent with lot and land expertise to help you better understand the local regulations and the most marketable lot sizes for your subdivision plans. Good luck!