Is little house a proper noun or common noun?
The term 'little house' is a noun phrase.
The word 'house' is a common noun, a general word for a type of dwelling.
The word 'little' is an adjective used to describe the noun 'house'.
A proper noun is the name of a specific person, place, or thing. Examples of proper nouns for the common noun 'house' are Little House of Chess Inc. in New York City or Little House Family Day Care in Los Angeles, CA.