ARMLS does not have an official answer of what defines a bathroom. What makes a bathroom to you? Does it need to have a toilet, a sink, a soaker tub? What makes a bathroom 3/4 or a half bath? You may have a good idea of what that looks like, but our lack of an official definition answer is similar to the bedroom definition. If you’d like a more specific answer, try talking to your broker. Often time, they will have clear definitions for each room of the house.
With that being said, if ARMLS receives a report concerning the number of bathrooms being incorrect and it’s an obvious error (x: the field were to reference 30 bathrooms in a 1,000 sq. ft. home), our Data Integrity department may contact the listing agent to to address the field and provide education on the topic.