What is another word for additional building?
Pronunciation: [ɐdˈɪʃənə͡l bˈɪldɪŋ] (IPA) 
There are many synonyms for the term "additional building" which can be used to describe any structure that has been added to an existing property. One of the most common synonyms is outbuilding, which refers to any building that is separated from the main house and serves a different purpose. Another synonym is annex, which is typically used to describe a smaller building that is attached to the main structure and used for additional space. Some other synonyms include extension, add-on, accessory building, auxiliary building, or supplementary building. No matter which term is used, it is clear that an additional building can greatly enhance the functionality and value of any property.
