numberOfBathroomsTotal

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.

Thing > Property > numberOfBathroomsTotal

The total integer number of bathrooms in a some Accommodation, following real estate conventions as documented in RESO: "The simple sum of the number of bathrooms. For example for a property with two Full Bathrooms and one Half Bathroom, the Bathrooms Total Integer will be 3.". See also numberOfRooms.
Values expected to be one of these types
Integer
Used on these types
Accommodation

Source

https://github.com/schemaorg/schemaorg/issues/2373