Single family in Business zoned area

[David Boroughes]

Looking at purchasing a single family property that is located in a Business zone in the Town. It is an older home and has always been used as a single family residence. When I look into the zoning ordinances a single family residence is only allowed in a business zone with a special use permit. The property does not meet zoning requirements for much (frontage, set backs, lot size) because it was built prior to the zoning and is grandfathered in. Question is, if I buy it is this going to be a big headache to try and keep as a single family residence? Or, since that is what it has always been, will it be a non issue?