Definition of "casa"

I saw that Enriquez had made no attempt to modernize the old casa, and that even the garden was left in its lawless native luxuriance.

1896, Bret Harte, Stories in Light and Shadow

Chuffy: WHAT? No, no, no, no, no. My casa is your casa, what?

1991 May 12, “Kidnapped!”, in Jeeves and Wooster, Series 2, Episode 5