This mansion appears as Goethe’s aka attorney’s Ko Tae-rim’s (Jin Goo) law firm in Legal High (리갈하이) (JTBC, 2019).
This mansion is located in Seoul’s neighborhood Pyeongchang [Pyeongchang-dong/평창동], in the Jongno District [Jongno-gu/종로구]. According to naver.maps, gallery VIUM is now located in this building.
309 Pyeongchang-gil, Pyeongchang-dong, Jongno-gu, Seoul
서울특별시 종로구 평창길 309 인마이메모리
(서울특별시 종로구 평창동 439-3)
Geolocation: 37.614907, 126.977256
Hongje Station [홍제역], Seoul Subway Line 3, Exit 1 or 2
(Prepare for quite a walk or take a taxi.)
— submitted by Marion KDL