We do not currently know of any antonyms for strata title.
The noun strata title is defined as:
A form of title over parts of real property (originally designed to facilitate ownership and mortgage of separate parts of a building, often on multiple levels). This type of title, so called in Australia, Singapore, British Columbia and elsewhere is also known as "condominium", "commonhold" and "sectional title" in other juridictions. Usually some "common property" is the responsibility of all strata title holders via an owner's corporation.
