Finding a childhood friend through property records?

I had this friend that lived down the street from me when I was really little. Like before kindergarden. She went to a different school (her catholic, me public) even though we lived just a few houses away, but we sorta remained friends and would say hi every so often. And I had become friends with her two younger brothers as well. The family moved away when I was in the sixth grade, but I'd like to try to get in touch with them through facebook or something to see how they are doing. Only thing is that I only ever heard their last name once. And I do not remember it. Only one family has owned the house since they moved out, so I'm hoping that it's possible to find their family name through some sort of property records. Does anyone know if this is possible online? I'm sure I could do it at the local library (both my parents actually work there) but I've never been good at finding things in local history.