Cement maker to develop former ready-mix concrete factory site in Seongsu-dong directly
Plans 79-story mixed-use complex reaching 360 meters
Hotel and other proprietary brands to anchor landmark development
Development capabilities focused on DMC Susaek project, due for completion next year
Sampyo Group, best known as a cement and ready-mix concrete company, is setting its sights on becoming a supertall developer in Seoul's Seongsu-dong neighborhood. The group plans to build a mixed-use complex rising up to 79 stories and 360 meters on the site of a factory that supplied ready-mix concrete to the capital for 45 years.
The group has also begun building a proprietary brand identity for the Seongsu project. The move signals a fundamental shift for Sampyo — from a supplier of basic construction materials to a full-fledged developer handling spatial planning, brand creation and operations.
Sampyo Group is pursuing the "SGL (Sampyo Global Landmark)" project on the site of its former ready-mix concrete factory in Seongsu-dong 1-ga, Seongdong-gu, Seoul, industry sources said Friday. The plan calls for transforming the plot near Seoul Forest into a supertall mixed-use complex combining office, commercial and residential space. SGL is designed to reach 79 stories and 360 meters. If completed as planned, Sampyo says it would become the second-tallest skyscraper in Seoul, behind only Lotte World Tower.
The Sampyo ready-mix concrete factory in Seongsu-dong began operation in 1977, serving for nearly half a century as a key supplier of concrete for Seoul's urban development. The Apgujeong Hyundai apartment complex and other major residential projects, financial and industrial facilities, roads and bridges — the basic materials that built modern Seoul were produced at the Seongsu plant. Over time, however, the factory drew complaints about pollution, traffic and noise in the middle of the city, and it was demolished in 2022. Where concrete mixer trucks once rolled out, Sampyo now envisions a supertall landmark adjoining Seoul Forest.
Sampyo does not see SGL as a simple building project. The group is positioning it as a full mixed-use complex brand encompassing a hotel, branded residences, prime office space and retail facilities.
To that end, Sampyo is reinforcing its in-house brand organization and is reportedly recruiting a senior brand director with more than 15 years of experience on large-scale development projects.
The group's internal structure has already changed. Last year, Sampyo established a dedicated Seongsu Project Headquarters and has been expanding its staff. Rodrigo Bilbao, a president with global real estate development experience, is involved on the development side, while Seok Hui-cheol, a president who worked on the construction of Lotte World Tower in Jamsil, is participating on the construction side, according to sources. The headquarters currently includes 12 executives — among them president-level officers, senior managing directors and directors — with a total staff of around 50.
Sampyo is also adding personnel in product planning, design, procurement and technology. The group intends to expand the organization further to build a professional developer structure covering everything from development to operations.
Sampyo's vision for SGL is a "future city embracing the forest." The concept calls for creating a mixed-use hub for business, commerce and culture that connects Seoul Forest, the Han River and the broader Seongsu-dong urban fabric. Plans include a multi-level pedestrian deck linking the complex directly to Seoul Forest, with the aim of drawing the entire site into the park's living zone.
The transformation of Seongsu-dong itself underpins Sampyo's decision. Once associated primarily with light industry, the neighborhood has in recent years become one of Seoul's most sought-after commercial districts, drawing fashion labels, food and beverage concepts, startups and pop-up stores. Its proximity to Seoul Forest and the Han River has made it a destination where demand for office, residential and retail space converges. For Sampyo, a site it operated as a factory for decades has become a stage on which to define the group's next chapter, rather than simply an asset to sell.
American architecture firm Kohn Pedersen Fox Associates (KPF) is handling the design. KPF is known for its work on Roppongi Hills in Tokyo, Hudson Yards in New York and Lotte World Tower in Jamsil.
In the Jeungsan-dong area of Eunpyeong-gu, Seoul, Sampyo's DMC Susaek development project is serving as the group's first real test of its real estate development capabilities. The project has passed the 60 percent completion mark and is targeting an April 2027 completion. It will be a mixed-use residential complex comprising three buildings with five below-ground floors and 36 above-ground floors.
The DMC Susaek project also includes plans to relocate Sampyo Group's headquarters. The office building is slated to become the group's new head office after completion. If SGL represents Sampyo's long-term vision, DMC Susaek is its first report card as a developer entering the market.
Significant challenges remain. A 360-meter supertall structure must clear numerous hurdles — permits, traffic, environmental impact, sightlines and community acceptance. The location near Seoul Forest and the Han River is an asset, but it also invites scrutiny over public interest and the impact on the cityscape. A sluggish construction market, interest rate pressures and shifting supply-and-demand dynamics in the office sector add further uncertainty. A key question is whether Sampyo can translate the technological competitiveness it built in manufacturing into profitability and operational capability in real estate development.
"We plan to strengthen our brand strategy by adding staff to the existing brand division," a Sampyo Group official said. "Building on the quality and technical expertise verified at Susaek, we will lay the groundwork for real estate development and bring together the group's full capabilities to complete the Seongsu project, including the SGL project going forward."
hong@heraldcorp.com