The assessment of values and its effect on intervention in historic building conservation

In conservation practice, except for the basic maintenance to protect buildings from deterioration, other active actions of intervention have been applied as feasible alternatives to conserve historic buildings. However, it is undeniable that specific degrees of intervention, which vary from one case to another as a result of balancing and discussions, may have some adverse impact on historical buildings to some extent. Therefore, it is essential to understand the criteria of decision-making in terms of intervention degrees, which highly relies on value assessment of historic buildings.