Historic sites are a finite resource which cannot bereplaced once damaged or contrast withsome nature conservation or landscape designations,which may embrace very extensive tracts of land,designated historic sites tend to be more limited example,the average area of a scheduledmonument is only hectares and the average area of a registered park and garden is 108 and their curtilages generally occupy farsmaller should not,therefore,be particularlyonerous to avoid locating potentially damaging windfarm developments within nationally important historicsites,and the criteria adopted by regional planningbodies and local authorities for assessing renewableenergy projects in RSSs and LDFs should reflect but.