> But then people will write them with As, Bs, Es, etc. attached. This is fairly commonly used for multi-unit dwellings, especially when someone turns a "norma

> But then people will write them with As, Bs, Es, etc. attached. This is fairly commonly used for multi-unit dwellings, especially when someone turns a "normal" house (with a purely numeric street address) into multiple units, including renting out their basement. In subdivisions the houses are often consecutive numbers (with odd/even numbers on opposite sides of the road), and it's not like the city is going to re-number every other house on the street.