"Does My Apartment Have Problems Too?" 249 Defects Found in 167 Units... Ranking of Construction Companies by Apartment Defects

Ministry of Land to Disclose Top Construction Companies with Most Defect Determinations in the First Half of 2026

According to recent statistics, apartments built by Soonyoung General Construction recorded the highest number of defect rulings over the past six months. Apartments constructed by Shindong-A Construction, Biltek General Construction, Line (including Line Construction), and SG Construction also reported a significant number of defects.

Based on the results of multi-family housing defect rulings for the first half of this year, released by the Ministry of Land, Infrastructure and Transport on March 29, Soonyoung General Construction was found to have 249 defect cases (based on the number of detailed defects) recognized in 167 households. This translates to a defect ruling rate of 149% relative to the number of apartment units. In the previous list disclosed in October last year, the company ranked third. Shindong-A Construction had 120 defects recognized in 2,629 households. Biltek General Construction had 66 cases in 27 households, and Line recorded 56 cases in 1,302 households.

Soonyoung General Construction also ranked first for the first time in terms of cumulative defect cases over the past five years. GS Engineering & Construction, which had previously been the company with the most defects, dropped to ninth place. The company was previously at the center of significant defect issues in 2023, following the underground parking lot collapse at the Geomdan apartment complex, where it had participated as the contractor. Based on cumulative totals, Daemyoung General Construction was ranked second, and SM Line (including Woobang Construction Industry) came in third.

Construction has been halted at an apartment construction site in Daemyeong-dong, Nam-gu, Daegu. Photo by Jinhyung Kang

According to the data released by the Ministry of Land, Infrastructure and Transport, the Defect Review and Dispute Mediation Committee handled 4,761 defect-related dispute cases (including reviews, mediation, and arbitration) last year. Over the past five years, it has processed an average of about 4,600 cases annually. The defect ruling rate relative to the number of applications over the past five years stood at around 68%. By type, functional failures were the most common, followed by detachment and peeling, cracking, condensation, water leakage, and contamination or discoloration.

After the government released the list in the second half of 2024, the total number of defect cases has been steadily declining. The Ministry of Land, Infrastructure and Transport assessed that this is due to the regular release of the list, which has strengthened the quality control of project owners and led to quicker defect repairs. The Defect Review Committee plans to establish a system that notifies applicants via text message and through its website when repair results are registered, so that residents can easily check the outcomes of defect repairs. In the second half of this year, the method will be changed so that the list of construction companies with numerous defects will be posted on the committee's website.

Jang Woo-cheol, Director of Housing Policy at the Ministry of Land, Infrastructure and Transport, stated, "We will continue to encourage construction companies to improve quality through the disclosure of these lists and will keep enhancing defect-related systems to protect the rights and interests of residents."

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