house-builder vs constructor

house-builder and constructor both are nouns.

Word	Noun	Adjective	Verb	Adverb
house-builder	Yes	No	No	No
constructor	Yes	No	No	No

As nouns, constructor is a hypernym of house-builder; that is, constructor is a word with a broader meaning than house-builder:

house-builder: someone who builds houses as a business
constructor: someone who contracts for and supervises construction (as of a building)

Other hypernyms of house-builder include builder.

house-builder (noun)	constructor (noun)
someone who builds houses as a business	someone who contracts for and supervises construction (as of a building)