gold coast vs neck of the woods

gold coast and neck of the woods both are nouns.

Word	Noun	Adjective	Verb	Adverb
gold coast	Yes	No	No	No
neck of the woods	Yes	No	No	No

As nouns, neck of the woods is a hypernym of gold coast; that is, neck of the woods is a word with a broader meaning than gold coast:

gold coast: a rich neighborhood noted for expensive homes and luxurious living; usually along a coastal area
neck of the woods: a surrounding or nearby region

Other hypernyms of gold coast include locality, neighborhood, neighbourhood, vicinity.

gold coast (noun)	neck of the woods (noun)
a rich neighborhood noted for expensive homes and luxurious living; usually along a coastal area	a surrounding or nearby region