noun
one's land; one's estate; domain
Refers to land or real estate that a person or entity owns. 地 emphasizes the land aspect. 'Demesne' is a rare historical term; the core meaning is simply 'owned land'.
彼は郊外に広い所有地を持っている。
He has a large piece of land in the suburbs.
その会社は都心にいくつかの所有地を抱えている。
The company holds several properties in the city center.
財産 refers to property or assets in general, including money and belongings, not just land.
Compound of 所有 (しょゆう, 'ownership') + 地 (ち, 'land'). The meaning is transparent from its parts.