Hotel New Grand Main Building is a distinguished historic hotel located in Yamashita-cho, Yokohama. Originally constructed in the early twentieth century, this iconic structure underwent comprehensive seismic retrofitting work completed in 2014. Shimizu Corporation executed the renovation, carefully preserving the building's classical architectural character while modernizing its structural integrity to meet contemporary earthquake safety standards. The project exemplifies sensitive restoration practices, maintaining the original aesthetic appeal of this landmark lodging facility while ensuring its long-term viability. The completed renovation allows this cherished hospitality venue to continue serving guests with enhanced safety and reliability.