adjective
[ usually before noun ] ( especially BrE ) ( of an area of land ) covered in buildings, roads, etc. :
to reduce the speed limit in built-up areas
adjective
[ usually before noun ] ( especially BrE ) ( of an area of land ) covered in buildings, roads, etc. :
to reduce the speed limit in built-up areas
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005