Yangcheon District Invests 3.2 Billion Won in '100-Year Sewage Redesign' for Mokdong Redevelopment

47,438 Households After Redevelopment
Design to Be Completed Next Year

Yangcheon District in Seoul (District Mayor Lee Kijae) is redesigning the local sewage facilities in preparation for the redevelopment of the Mokdong apartment complexes. On the 13th, the district announced that it has launched the “Basic and Detailed Design Service for Sewage Maintenance around Mokdong Apartments.”

A bird's-eye view of the reconstruction and maintenance project of Mokdong 11 Complex. Provided by Yangcheon District Office.

The Mokdong Apartments, located across 2.28 square kilometers in the Mokdong and Sinjeong-dong area, currently consist of 14 complexes with a total of 26,629 households. Once the redevelopment is complete, this number will increase to 47,438 households—about 1.8 times more. With a net increase of 20,809 households, the demand for sewage treatment is expected to rise significantly.

From April 2024 until the end of last year, the district carried out a basic planning service, which included investigations of existing sewage pipes and rainwater pumping stations, a review of flood history, analysis of estimated population and stormwater/sewage generation due to redevelopment, and a reassessment of drainage districts. Based on these findings, the district is investing 3.2 billion won to proceed with both basic and detailed design from May this year until November 2027.

The stormwater pipes, which handle rainwater, will have their scale recalculated to reflect the stricter disaster prevention performance standards set by the Ministry of Environment and Seoul Metropolitan Government. The adequacy of the sanitary sewage pipes, which handle domestic wastewater, will also be reassessed in line with the increased number of households following redevelopment and the revised sewage design standards. Experts from five fields—water and sewage, civil engineering, geotechnical engineering, mechanical engineering, and electrical engineering—will participate to review structural safety, constructability, and maintenance efficiency.

As of December last year, all 14 Mokdong apartment complexes completed their designation as redevelopment zones. Among the eight complexes (1, 2, 5, 9, 10, 11, 13, and 14) being pursued through the trust method, project operators have been appointed. Of the six complexes (3, 4, 6, 7, 8, and 12) using the cooperative method, five have established cooperatives. In June, Complex 6 selected its construction company.

Lee Kijae, Mayor of Yangcheon District, stated, “The Mokdong apartment redevelopment is a crucial project that will shape the future of Yangcheon District. Therefore, it is necessary to systematically upgrade invisible infrastructure such as sewage systems with full consideration of future demands. Through this project, we aim to establish a sewage system that looks ahead 100 years, creating a safer and more pleasant urban environment for our residents.”

This content was produced with the assistance of AI translation services.