In the UK, it's pretty common for the post code to be the first field in address forms, and for the form to then offer auto-completion for the whole address bas

In the UK, it's pretty common for the post code to be the first field in address forms, and for the form to then offer auto-completion for the whole address based on the post code. Postcodes are specific enough that the autocomplete will just give you a handful of addresses (e.g. my postcode will give you just the flats for the building I live in).