3 of 4 units are legal but 1 unit was divided as extra unit with studio and 3/4 bath is not permitted. Two original units (plus 1 studio as 3rd unit)are all front building. There is separate back building:4th unit. Between 2 buildings there are patio/back yard cement area. Owner had just cut the tree from this area. This property has lots of potential. There is a front yard to park cars.