先さき隣となり

noun

next door but one; two doors away

Refers to the house or neighbor that is one house removed from the speaker's own, i.e., not immediately next door but the one after that.

• さきとなりの家いえは空あき家やだ。

  The house two doors down is vacant.

• さきとなりの奥おくさんとはよく立たち話ばなしをする。

  I often chat with the lady who lives two doors away.