From Longman Dictionary of Contemporary Englishconservation areaˌconserˈvation ˌarea noun [countable] 1 SGEan area where animals and plants are protected2 AA British English an area where interesting old buildings are protected and new buildings are carefully controlled
Examples from the Corpus
conservation area• But Stroud District Council says no, she must restore the original wooden window frame because it's a conservation area.• She's quite happy to look like a forest conservation area.• Demolition in conservation areas Permission is also needed to demolish an unlisted church in a conservation area.• But others said the scheme would mean extra traffic and harm the conservation area and outlook on historic buildings.• We also understand that the Black Lion is situated in the conservation area in Llanfair Caereinion. 