Next door and Proximate

Next door adverb - At or in or to the adjacent residence.

Proximate and next door are semantically related. in close by physically topic. In some cases you can use "Proximate" instead an adjective phrase "Next door".

Proximate adjective - Being soon to appear or take place.

Next door and proximate are semantically related. Sometimes you can use "Next door" instead an adjective "Proximate".