housebuilder vs homebuilder

housebuilder and homebuilder both are nouns.

Word	Noun	Adjective	Verb	Adverb
housebuilder	Yes	No	No	No
homebuilder	Yes	No	No	No

As nouns, housebuilder and homebuilder are synonyms defined as:

Other synonyms of housebuilder include home-builder, house-builder.

housebuilder (noun)	homebuilder (noun)
someone who builds houses as a business	someone who builds houses as a business