In the heart of Seoul’s Gangnam district, a high-stakes rivalry is playing out that could redefine the city’s skyline and the future of urban redevelopment in South Korea. On May 19, 2026, Samsung C&T and POSCO E&C, two titans of the domestic construction industry, are locked in a fierce contest for the coveted rights to redevelop the Sinbanpo 19 and 25 apartment complexes in Seocho-gu. This integrated project, which also encompasses Jamwon CJ Village and Hanshin Jinil Villart, has become the ultimate prize in the capital’s most competitive real estate market.
The stakes are enormous. With 446 association members and a construction budget of 443.4 billion KRW—on par with the annual urban renewal portfolios of many regional builders—this redevelopment will see the rise of seven buildings, up to 49 stories tall, and about 614 new housing units. But beyond the numbers, the outcome will determine which brand claims the throne in Gangnam’s lucrative and image-conscious redevelopment sector.
In a scene that could only happen in Korea’s hyper-competitive construction world, both Samsung and POSCO have set up elaborate promotional centers—one on the fourth floor and the other just above on the fifth—of the same building in Jamwon-dong. Here, association members ride the elevator between floors, scrutinizing scale models and grilling company representatives about every detail, from design to financing.
Samsung C&T’s pitch centers on its proposed ‘Raemian Illucera’ complex, a vision brought to life with a striking 1:145 scale model featuring twin towers soaring 180 meters high. The company is touting its unrivaled experience in integrated redevelopment, pointing to successful projects like One Bailey, Sinbanpo Rio Cent, and Banpo Riche. According to Smart Economy, the master plan reduces the original seven residential buildings to six, widening the gaps between them to maximize privacy and comfort. The twin towers’ upper floors will feature a ‘Sky Community’ offering panoramic Han River views—a key selling point for Gangnam’s asset-rich clientele.
Samsung claims a scientific edge, too. By employing Vista Matrix Analysis (VMA), a simulation technique adapted from educational environmental assessments, the company says it can guarantee unobstructed Han River views for all 446 association members and 87% of general sale units. This, they argue, solves the perennial dilemma of balancing northern river views with southern sunlight, a challenge that has long vexed high-end developments along the Han.
Another standout feature is the ‘Swivel’ hybrid layout, which allows residents to swap the positions of their living rooms and kitchens to optimize both sunlight and scenery. “We are demonstrating the value Raemian has built in Banpo and our overwhelming financial stability,” a Samsung C&T representative told Energy Economy. “Our goal is not to make empty promises, but to show practical designs that can be immediately approved.”
But POSCO E&C isn’t backing down. Their proposal, dubbed ‘The Banpo OTIER,’ is a masterclass in visual drama and financial innovation. The promotional center greets visitors with immersive video displays and a model zone where members can simulate the actual Han River views from various apartments. POSCO’s design employs a diagonal building layout and a signature skybridge, boosting the number of river-view units to 523—well above Samsung’s 388, they claim.
POSCO’s pitch is all about maximizing member profits and offering what it calls a ‘zero-2-1’ financial package: zero member burden, 200 million KRW per unit in financial support, and project financing at CD-1% (roughly 1.82%). The company also promises a post-construction payment strategy and will shoulder up to 10 billion KRW in inflation costs. “We’ve focused all our capabilities on Korea’s best location,” a POSCO representative said, adding that the company aims for no additional member contributions for units of the same size.
Notably, POSCO is betting on a post-construction sales strategy, arguing that by deferring payments until after completion, they can further boost association profits. POSCO projects that by 2033, sale prices could exceed 150 million KRW per 3.3㎡, a figure that has caught the attention of many members.
The gloves have come off in this contest, with both sides publicly criticizing each other’s proposals. Samsung has dismissed POSCO’s financial package as a “mirage,” arguing that the so-called support is merely a loan that members will eventually have to repay. “There’s a fundamental difference between no repayment obligation for members and for the association,” Samsung contends. Instead, Samsung is offering unlimited project financing loans at the lowest rates, backed by its AA+ credit rating, and a suite of benefits including 100% LTV for relocation loans, zero guarantee fees, deferred payments until move-in, and full refunds within 30 days of contract signing.
For Samsung, the focus is on stability and deliverability. “We’re the top construction firm in Korea with a 34 trillion KRW capacity,” they point out, referencing their track record with complex integrated projects. Samsung also promises that its designs comply with all building codes and are ready for immediate permitting—a subtle dig at POSCO’s more ambitious, but potentially riskier, plans.
POSCO, meanwhile, accuses Samsung of negativity and insists that location and product quality—not just brand—determine property values. They cite high-profile developments like Nine One Hannam and Trimage as evidence that “good homes aren’t only built by Samsung.” POSCO also questions the specificity and enforceability of Samsung’s construction guarantees and quality standards.
Design differences are also a flashpoint. Samsung touts 100% south-facing units and criticizes POSCO’s “office-style” layouts, warning that some POSCO units feature fixed windows on all three sides of the living room, which could impede ventilation. POSCO counters that its innovative design, including the skybridge, is precisely what sets it apart and maximizes river views despite the site’s constraints.
At the core of the debate is a simple question: Who can deliver more value—and actually follow through? Association members are weighing eye-popping financial incentives against the realities of construction costs, interest rates, and the risk of future design changes or additional fees if project economics shift. As one industry insider told Energy Economy, “The important thing is how these promises are reflected in the contract and executed during the project. If profitability worsens, there could be additional costs or design changes.”
The outcome of this “Banpo Grand Battle” will be decided by the 446 association members, whose votes will determine not just the fate of Sinbanpo 19 and 25, but the next chapter in Seoul’s ongoing urban transformation. Both Samsung and POSCO have much at stake: for POSCO, it’s the first major test under new CEO Song Chi-young; for Samsung, it’s a chance to reclaim pride after a recent defeat in Busan’s redevelopment market.
As the dust settles and the votes are counted, one thing is clear: the future of Banpo—and perhaps the entire Gangnam redevelopment market—hinges on the outcome of this unprecedented showdown.