Britain has adopted the so-called "transfer of development rights." It doesn't matter whether land has been designated as a protected area, as agricultural land, as construction land, or whatever, all of them have the same level of development rights. If you want to develop construction land past its development rights indicator, it is necessary to buy deyelopment rights from the neighboring agricultural landowners or nature preserve owners.
英國有所謂「發展權移轉」，不論被編訂為保護區、農地、建地… …，均擁有同等發展權，若建地要開發超過它的發展權指數，必須向鄰近的農地、自然保護區地主購買發展權。