olemus
Wiktionary:
1. (law) something that is fixed in place, especially a permanent appliance or other item of personal property that is considered part of a house and is sold with it; compare fitting, furnishing

ülevaateid
https://study.com/academy/lesson/fixtures-in-property-law-definition-examples.html

https://www.findlaw.com.au/articles/4520/property-law-what-is-the-difference-between-a-fixt.aspx

https://en.wikipedia.org/wiki/Fixture_(property_law)

näiteid
bathroom fixture -- sanitaarseade
fixtures -- alaline sisseseade
trade fixture -- sisseseade