Sangil-dong (Korean: 상일동) is a dong (neighbourhood) of Gangdong District, Seoul, South Korea.

[1][2] Sangil-dong literally means 'Upper Part' and located geographically higher than Hail-dong(Currently Gangil-dong) where the stream of Genae flows.

Until the early 1980s, huge apartments complex named Godeok Jugong Apartments were built by Korea National Housing Corporation (currently Korea Land & Housing Corporation).

Sangil-dong Station is the eastern terminus of Seoul Subway Line 5 and also location for Hanyoung Foreign Language High School.

The complex is composed of three buildings and spans an area of more than 27,000 square meters, making it the fifth-biggest corporate estate in the Seoul area.