This is the exterior of On Ri-won’s (Park Gyu-young) real estate office in the present day, as seen in episode 13 of The Third Charm / The 3rd Charm (제3의 매력) (JTBC, 2018).
58 Seongji-gil, Hapjeong-dong, Mapo-gu, Seoul
서울특별시 마포구 성지길 58
(서울특별시 마포구 합정동 376-9)
Geolocation: 37.546264, 126.912618
Hapjeong Station [남영역], Seoul Subway Line 2/6, Exit 7
(6 min. walk)
— submitted by Mich KDL