The purpose of this paper is to find out the legal problem confronted by the design process of comprehensive renovation with seismic retrofitting, and to make clear that the way of correspondence to building codes.
Main conclusions are the followings:
1. It is necessary to be required over short term procedures by reason of applying the mitigation system and avoiding the supplication for building confirmation.
2. The most disincentive factor in comprehensive renovation is the “retroactive application”.
3. It is important to value improve the holistic legal value and performance value, while aware of time axis.
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