by Choi Daeyul
Published 10 Feb.2026 17:09(KST)
Updated 10 Feb.2026 19:33(KST)
A commotion has arisen over the bidding process to select a construction contractor for the redevelopment of Seongsu Strategic Maintenance District 4 (Seongsu District 4) in Seongdong-gu, Seoul. The association initially decided to conduct a re-bid, citing incomplete documentation submitted by Daewoo Engineering & Construction, but then canceled the re-bid announcement after criticism that there were procedural problems. After going in circles, the competition has effectively reverted to the original structure between Daewoo Engineering & Construction and Lotte Engineering & Construction.
According to industry coverage compiled on February 10, the Seongsu District 4 association issued a re-bid announcement on this day, stating that Daewoo Engineering & Construction had failed to submit key drawings in the bid that closed the previous day. The association declared the first bid void, arguing that it was impossible to analyze construction costs based on the materials submitted by Daewoo Engineering & Construction and raising the possibility of damage that association members could suffer.
Daewoo Engineering & Construction pushed back. The company stated, "This declaration of a failed bid ignores legal procedures, relevant regulations, and case law," adding, "It is bound to result in significant damage to the association members."
According to the company, the association declared the first bid void and issued a re-bid announcement without going through the prescribed procedures such as a board of directors meeting or a delegates' meeting. The company viewed this, in itself, as a violation of legal regulations. It further explained that the bidding guidelines and the bid participation manual require only an "alternative design plan (with design drawings and a bill of quantities attached)" and do not stipulate any obligation to submit detailed documents for each specific field.
The company also pointed out that, under the relevant regulations of the Ministry of Land, Infrastructure and Transport and the Seoul Metropolitan Government, even at the integrated review stage only a plan-level submission is required and detailed drawings are not demanded, so requiring them at the bidding stage runs counter to the intent of the制度. Court precedents, it noted, have likewise found that such documents are not mandatory requirements for bidding, and that retroactively interpreting standards not set out in the bidding guidelines or changing requirements afterward can constitute grounds for invalidating a bid.
Daewoo Engineering & Construction stated, "Although we participated in the bidding in a legitimate manner, the association has declared the bid void for reasons that cannot be accepted, delaying the project period by about two months and raising serious questions about fairness," adding, "We express grave concern that the bidding process could proceed in a way that favors a specific construction company, and we are reviewing the procedural validity of the process in accordance with the relevant laws and court precedents."
Once the controversy broke out, the association reportedly canceled the re-bid announcement. It is said that the association has decided to convene a delegates' meeting to deliberate on issues such as the omission of bid documents by Daewoo Engineering & Construction. Previously, Daewoo Engineering & Construction and Lotte Engineering & Construction each paid a bid bond of 50 billion won on February 5 and submitted bid proposals and other bidding documents the previous day. The project calls for the construction of up to 64-story apartment buildings with 1,439 units and ancillary facilities, with total construction costs estimated at 1.3628 trillion won.
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