Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ironbridge Gorge' has mentioned 'Listed buildings' in the following places:
Occurrence Sentence Text Source
Firstly, individualxc2xa0 buildings, monuments, gardens and landscapes are designated under the Planning (Listed Buildings and Conservation Areas) Act 1990 and the 1979 Ancient Monuments and Archaeological Areas Act and secondly, through the UK Spatial Planning System under the provisions of the Town and Country Planning Acts.
The entire site is a designated Conservation Area and there are over 375 listed buildings of which two are Grade 1 andxc2xa0eighteen are Grade 2*.