This is where the office of ‘Brothers’ Cleaning Room’ (형제청소방), the cleaning service run by brothers Park Sang-hoon (Park Ho-san) and Ki-hoon (Son Sae-byeok) is located in My Mister/My Ajusshi (나의 아저씨) (tvN, 2018). The interior was also filmed in the same unit, and not on a set.
Sejong Building [세종빌딩] is located in the neighborhood of Songjeong-dong [송정동] in the city of Icheon [이천시], Gyeonggi-do; around 2 hrs by public transport south east of Seoul from Seoul Station. The unit that the cleaning service office takes up used to be a telecommunications shop.
Address: 303 Jeungsin-ro, Icheon, Gyeonggi-do, South Korea
경기도 이천시 증신로 303
(경기도 이천시 송정동 342 108호)
Geolocation: 37.297487, 127.438899
– submitted by Mich KDL