Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Royal Exhibition Building and Carlton Gardens' has mentioned 'Buffer zone' in the following places:
Occurrence Sentence Text Source
The inscribed property consists of a rectangular block of 26 hectares bounded by four city streets with an additional 55.26 hectares in the surrounding buffer zone.
A buffer zone, the World Heritage Environs Area, covering an additional 55.26 hectares, was established in 2010 and has been supplemented by the World Heritage Environs Area Strategy Plan.