A postcode (or local equivalent) isn't necessarily particularly specific. For example, here in Austria the equivalent of a postcode might cover a whole city district.
Re:Palindrome Day 20200202
by umanwizard on Monday February 03, 2020 @08:12AM
(#22223812)
Yes, similar to the US. But British post codes (or at least the ones I’ve seen in London) are in fact very specific.
Indeed, a single postcode in the UK will contain (on average) about 20 addresses and (usually) only refer to a single street.
Of course that's arguable, as postcode shouldn't really be considered a component of-, rather an alternative to- other sections of the address.