dormitory town
From Longman Dictionary of Contemporary Englishdormitory townˈdormitory ˌtown noun [countable] British English TOWNa town that is near a city with more work opportunities, so that many people who live there travel to work in the city every day SYN bedroom community/suburb American EnglishExamples from the Corpusdormitory town• Thornbury was fast becoming a dormitory town for nearby Bristol, but there were a couple of decent pubs there.