The spouse of the decedent (hereinafter in this Chapter referred to simply as the "spouse"), if the spouse was residing at the time the succession opened in a building that belonged to the property of the decedent, and if any of the following items applies, acquires the right to use and profit from the whole of the building in which the spouse was residing (hereinafter in this Section referred to as the "building of residence") free of charge (hereinafter in this Chapter referred to as the "spouse's right of residence"); provided, however, that this does not apply if the decedent co-owned the building of residence with a person other than the spouse at the time the succession opened.
被相続人の配偶者（以下この章において単に「配偶者」という。）は、被相続人の財産に属した建物に相続開始の時に居住していた場合において、次の各号のいずれかに該当するときは、その居住していた建物（以下この節において「居住建物」という。）の全部について無償で使用及び収益をする権利（以下この章において「配偶者居住権」という。）を取得する。ただし、被相続人が相続開始の時に居住建物を配偶者以外の者と共有していた場合にあっては、この限りでない。
if it is provided that the spouse is to acquire the spouse's right of residence through division of the estate;
遺産の分割によって配偶者居住権を取得するものとされたとき。
if the spouse's right of residence is made the object of a legacy.
配偶者居住権が遺贈の目的とされたとき。
Even if the building of residence comes to belong to the property of the spouse, the spouse's right of residence is not extinguished if another person holds a co-ownership interest therein.
The provisions of Article 903, paragraph (4) apply mutatis mutandis to a legacy of the spouse's right of residence.