dwelling vs dwelling house

dwelling and dwelling house both are nouns.

Word	Noun	Adjective	Verb	Adverb
dwelling	Yes	No	No	No
dwelling house	Yes	No	No	No

As nouns, dwelling and dwelling house are synonyms defined as:

Other synonyms of dwelling include abode, domicile, habitation, home.

dwelling (noun)	dwelling house (noun)
housing that someone is living in	housing that someone is living in