one's final abode; last home
A somewhat literary or solemn expression for the place where one will spend one's final years or die. Often used in contexts of retirement, old age, or terminal illness.
He made his final home in the quiet countryside.
This little house will probably be my last abode.
Standard kanji form; 棲家 is a common spelling for 'dwelling' in this phrase.
Variant using 住処; also widely seen.
Rare kanji form using 栖; it is rarely used.
From 終 (つい, 'end, final') + の (possessive particle) + すみか (棲家/住処, 'dwelling, abode'). The reading つい is an older form of 終わり (おわり). The phrase is idiomatic and literary.