I moved into my development before all of the houses were complete, and after about two years they started building a new set of houses that they described as "

I moved into my development before all of the houses were complete, and after about two years they started building a new set of houses that they described as "zipper" style. The houses are basically "L" shaped, but turned so that they nestle into each other. I have no idea how the property lines work because you can clearly see that the houses overlap, but the official lines are all straight. I guess easements.