Conservation area (United Kingdom)

In the United Kingdom, the term conservation area almost always applies to an area (usually urban or the core of a village) of special architectural or historic interest, the character of which is considered worthy of preservation or enhancement. It creates a precautionary approach to the loss or alteration of buildings and trees, thus it has some of the legislative and policy characteristics of listed buildings and tree preservation orders.

Source: Wikipedia — Conservation area (United Kingdom) (CC BY-SA 4.0)