Is a property that is zoned for multiple residences, maybe 3 or 4, worth more than a property that i

This question can only be answered within the context of your local market. In an area where multi-residential set ups are desirable and scarce, we might assume this would increase the value. In an area where the desire for multiple residences in a tight space would not be considered desirable, it may not increase the value at all. Try to assess your local market – is there a demand for such property? Is there an adequate supply? Real estate (like many other things) is only “worth” what someone is willing to pay for it.

A local real estate appraiser or experienced real estate agent might shed some additonal light.