ELi5 – How are street adresses determined / how do they get numbered?

Question

ELi5 – How are street adresses determined / how do they get numbered?

In: 59

Answer 1

Not too far from me is a street that was originally laid out with very large property lots. Over the years some if them have been subdivided. Instead of renumbering the houses the town decided to just add 1/2 to the end of the number of the new houses. Between lets say 12 Main Street and 14 Main St (with 13 being on the other side of the street), the new house is and 1/2 Main Street.