South Korea Modular Construction Market Size and Share - Growth Analysis Report and Forecast Trends (2026-2035)

The South Korea modular construction market was valued at USD 1.80 Billion in 2025. The market is expected to grow at a CAGR of 4.90% during the forecast period of 2026-2035 to reach a value of USD 2.90 Billion by 2035. The South Korea modular construction market has evolved from a niche solution to a widely adopted approach as developers and government authorities increasingly seek faster, more efficient building methods that mitigate labor shortages, reduce costs, and support sustainability goals.

Key Market Trends and Insights

• By construction type, permanent modular type shows significant growth and is set to grow at a CAGR of 5.6% over the forecast period.
• By material, steel is expected to grow at a CAGR of 5.5% over the forecast period.
• By application, the residential category is projected to witness a CAGR of 5.8% over the forecast period.

Market Size & Forecast

• Market Size in 2025: USD 1.80 Billion
• Projected Market Size in 2035: USD 2.90 Billion
• CAGR from 2026 to 2035: 4.90%

The South Korea modular construction industry expansion is driven by the demand for quick-to-construct structures in urban and industrial regions with limited space and tough construction durations. At the same time, the promotion of smart and sustainable construction, such as energy-efficient designs and prefabricated high-performance materials, makes developers and institutions prefer using modular solutions to traditional construction.

Modular construction, which appears as standardized units created in factories and assembled on-site, decreases construction timescales, improves quality control, and reduces material waste when compared to traditional construction methods. The increasing awareness of these advantages has prompted individual developers and governmental housing departments to consider integrating modular techniques into residential mid- and high-rise developments, extending their presence in the South Korea modular construction market and making investments in associated technologies. For instance, in June 2023, Hyundai Engineering completed the tallest modular housing development in Korea to date, the 13-story Yongin Yeongdeok Gyeonggi Happy Housing, indicating that not only is modular construction of this scale technically feasible, but it is also commercially viable in South Korea.

Key Trends and Recent Developments

January 2026 - LG Showcased AI-Powered Smart Cottage to Highlight Modular Homes

LG Electronics created a permanent Smart Cottage at Juksan Morak, Gimje, and equipped it with AI-integrated modular houses to use as a workation and high-end lodging. Through rapid construction, energy saving, and in-built intelligent systems, the initiative of LG showed useful application of modular housing, boosting the South Korea modular construction market growth and prompting consumer and B2B interest.

September 2025 - Government Piloted Modular Rental Homes in South Korea

The government of South Korea tested modular-bought residential leasing to hasten housing delivery and enhance protection in low-rise and Seoul metropolitan locations as the top priority. The companies, such as the Zygaist of GS Engineering and Construction and Samsung Electronics, were present with demonstrations of scalable modular solutions. The initiative emphasized the efficiency of modular construction, the standard of quality, and the market expansion of the new modular housing segment in the country.

April 2025 - Korea’s First High-Rise PC Modular Apartment Was Unveiled

NRB and LH unveiled the first 22-story PC modular apartment in Uiwang, which has 381 units of public rentals. The project was four months ahead of schedule, enhanced soundproofing, and incorporated energy-efficient and prefabricated systems. This result demonstrated the successful implementation of industrialized modular methods, which aided in the development of the South Korea modular construction industry and the planning of future OSC-compliant projects.

December 2023 - Korean Researchers Developed Advanced Modular Construction Method

Researchers at KICT produced a modular construction approach in which 70 to 80% of building materials are assembled in the factory, eliminating building time, noise, waste, and safety hazards. The approach enhances faster housing delivery and is in line with the Korean government's 2023 modular housing plan. It was also scalable and recyclable and shown to have a future of practical adoption, further impacting the South Korea modular construction market growth trajectory.

Strategic Corporate Investments Fuel Market Scaling

Established businesses in the South Korea modular construction industry are investing in modular construction startups to diversify and use technology synergies. The manufacturers of traditional furniture, interior, and building components recognize modular techniques to add variety to their current product lines and provide turnkey, standardized building solutions. Such strategic investments contribute to the start-ups' scaling production, enhanced manufacturing quality, and faster market penetration; in effect, expanding modular adoption. For example, Hyundai Livart invested strategically in the modular housing development company SpaceWAVY in April 2023 in order to co-develop modular housing systems and integrated packages in accordance with the changing residential market.

CrossBorder Partnerships Advance Design Automation

The South Korea modular construction market is expanding faster due to international partnerships that promote the sophistication of technology. Through these partnerships, foreign design and automation skills coupled with local manufacturing capability can facilitate more effective planning, customization, and production processes. Companies using modern design software and digital tools promote accuracy, minimize expenses, and minimize delivery schedules, which are key benefits in the competitive building industry. For example, in May 2025, Estonian company Creatomus Solutions collaborated with Korea Build 2025, South Korea's space factory, to launch automated modular design tools in the country.

Venture Financing Accelerates Innovation and Growth

The flow of venture capital positively influences the development of modular technology opportunities in the South Korea modular construction market and the growth of new firms. Investors are focusing on companies that incorporate digital platforms, production optimization, and supply chain efficiencies, which are indicative of long-term belief in the value of modular solutions. Such funding allows startups to create proprietary systems, expand automation, and increase service offerings beyond simple construction modules. For instance, SpaceWAVY raised a 3.5 billion Series A round in May 2023 with strategic investors and accelerated its modular housing development path.

Public-Private Collaboration on Technology Development

The involvement of housing authorities and private technology partners facilitates the standardization and innovation of modular building practices. Such collaborations in the South Korea modular construction market encourage mutual research and development, aligned technical standards, and faster implementation of advanced modular solutions among various types of buildings. Through the combination of the demand of the public sector and the expertise of the private sector, collaborators help to minimize risks and promote the industrialization of construction. For instance, Korea Land & Housing Corporation (LH) entered into a modular housing technology development MOU with LG Electronics and several partners in June 2024.

Expansion into Diverse Project Types

Modular techniques are already being developed for tiny dwellings as well as larger and more complex residential complexes, indicating a diversification of the South Korea modular construction market. Public agencies and developers note that modular processes can produce quality and schedule benefits in mid-rise apartments, institutional development, and mixed-use development. This expansion of usage opens new opportunities and invites acceptance by stakeholders who might have used traditional methods. To cite an instance, the construction of the largest modular residential complex in Korea (450 units in Sejong), noted in May 2024, demonstrates the viability of modular at a large scale.

South Korea Modular Construction Industry Segmentation

The EMR’s report titled “South Korea Modular Construction Market Report and Forecast 2026-2035” offers a detailed analysis of the market based on the following segments:

Market Breakup by Construction Type

• Relocatable Modular
• Permanent Modular

Key Insight: The South Korea modular construction market scope comprises relocatable and permanent modular segments. Hyundai Engineering uses the H Modular Lab and prefab system portfolio to enhance the efficiency and quality of the assembly of permanent structures. Gs Engineering and Construction is growing its wooden and precast modular systems with XiGEIST and GPC units to improve construction and durability. Daewoo E&C specializes in relocatable modulars, which are designed to serve as temporary accommodation and emergency facilities with optimal deployment in a short time. Throughout these activities, the modular construction is being accelerated in both the flexible and long-term infrastructure projects.

Market Breakup by Material

• Plastic
• Wood
• Steel
• Concrete

Key Insight: Specialized product portfolios facilitate the development of durable materials in the South Korea modular construction market. Hyundai Steel is creating high-rise-capable steel modules that have improved fire-resistant connections. GS E&C enhances concrete modular construction through the GPC precast units of multifamily and institutional buildings. Daelim Industrial and SK Ecoplant refine wood-based modular systems and combine smart technology and moisture-resistant panels. The concentration of these companies on innovative materials, including precast concrete, engineered steel, and smart wood, enables improved structural performance, high-speed construction, and sustainable modular solutions.

Market Breakup by Application

• Residential
• Commercial
• Industrial/Institutional

Key Insight: The South Korea modular construction market caters to applications across residential, commercial, and industrial/institutional projects. GS E&C takes advantage of its XiGEIST prefab housing portfolio to provide efficient residential units. Hyundai Engineering applies H Modular systems to commercial developments to achieve optimal off-site production and logistics for offices and service buildings. Daelim Industrial and SK Ecoplant provide scalable modular solutions to industrial/institutional applications in schools, laboratories, and hospitals, incorporating new manufacturing methods and intelligent modules. Collectively, these players complement the speed, cost-efficiency, and quality of the modular construction ecosystem in South Korea.

South Korea Modular Construction Market Share

By construction type, the relocatable modular category continues to witness high demand driven by digital innovation

The demand for relocatable modular construction is booming in the South Korea modular construction market because of the growing need to have flexible, sustainable, and efficiently managed construction solutions. The researchers at Hanyang University ERICA created a facility management system of RMBs that uses BIM, IoT, and GIS to optimize logistics, performance monitoring, and lifecycle management. The innovation minimizes waste, allows modular reuse, and facilitates quicker deployment, which makes relocatable modular buildings a high-growth solution in the changing construction environment in South Korea.

Meanwhile, the South Korea modular construction market observes increasing demand for permanent modular construction, which is a focus area since developers are looking for ways to supply long-term structure delivery in a durable and factory-precision manner with low on-site risk. Large-scale players are developing new, superior modular divisions and products that rival conventional construction in quality and performance. For example, GS E&C introduced its high-end modular housing division, XiGEIST, in April 2023, offering modular detached homes and multifamily homes.

By material, steel witnesses high demand attributed to rapid modular construction adoption and industrial expansion

Steel accounts for a larger share of the South Korea modular construction market. The rising investments in the state-of-the-art steel fabrication and prefabrication technologies by the leading industrial players are enabling the growth of the segment of steel modular construction. Firms such as POSCO are increasing their steel processing and modular component manufacturing capacities to satisfy the need to have faster, durable, and scalable construction solutions. Hanwha Ocean and Hyundai Engineering and Construction are aggressively incorporating modular steel structures in industrial and institutional construction projects to streamline design and logistics and construction operations to minimize construction time and enhance the sustainability of large-scale projects.

On the other hand, concrete is picking up significant momentum within the South Korea modular construction market dynamics, specifically for multifamily and residential buildings, as a primary material of modular construction due to its superior structural performance and acoustic properties. PC (precast concrete) is being embraced in panelized modular frames that provide durability with reduced timelines. KC Industrial, a South Korean company, and its subsidiary KCMMC started distributing PC concrete modular construction elements across the nation, uniting precast and modular construction methods to meet housing demands with a high level of consistency and speed.

By application, the residential category dominates the market, fueled by convenience and affordability

Residential modular housing accounts for a significant share of the South Korea modular construction market, due to increased demand for second residences and flexible living spaces. This trend is evidenced by the introduction of new Smart Cottage models by LG Electronics in Seoul on October 2, 2025, with built-in heating, ventilation, and energy solutions. Having smaller, combinable units and relatively inexpensive pricing, the modular solutions save time and money in the process of construction, which makes them an ideal option for urban residents who must obtain a fast, eco-friendly house.

Industrial/institutional modular construction is treading on the right path as governments and companies concentrate on scalable, high-tech, and green infrastructure solutions, which is driving the South Korea modular construction market growth. The requirement to have more modular approaches that cut down on the construction time, improve efficiency, and enable reconfigurations is being steered by the investments in advanced manufacturing, energy, and research facilities. Major industrial organizations such as Hyundai and KAERI are actively developing technologies to support this growth. This trend is reflected in the June 2024 announcement of a planned small modular reactor (SMR) industrial complex in Gyeongju, aimed at accelerating the revitalization of industrial infrastructure.

Competitive Landscape

The South Korea modular construction market players are focused on standardization of off-site manufacturing, higher efficiency in assembly, and the incorporation of smart construction technologies into residential and commercial construction. Companies are focusing on the development of concrete (precast) and wood modular solutions for better durability, sustainability, and flexibility in design to support the creation of long-term infrastructural developments and promote the increased application of modular techniques in all types of projects.

Another major driving factor is investment in material innovation and scalable modular solutions. Modular systems in steel are being streamlined to be higher and fire-resistant, and the wood-based and hybrid systems give emphasis to process automation, mass production, and lifecycle optimization. All these measures contribute to faster project completion, reduced costs, and improved quality, thereby driving the overall growth of South Korea modular construction companies across the residential, commercial, and industrial sectors.

Hyundai E&C Co., Ltd.

Hyundai E&C Co., Ltd. is a successful construction and engineering company in South Korea, founded in 1947 and based in Seoul. The company focuses on large-scale infrastructure, residential, and modular construction projects and uses innovative technologies to improve efficiency and sustainability.

Samsung C&T Corporation

Samsung C&T Corporation is a multinational construction and engineering powerhouse that was founded in Seoul in 1938. The company has emerged as a prominent name in the South Korea modular construction industry landscape and specializes in the solutions of high-rise, industrial, and modular buildings, with the combination of the latest construction techniques and intelligent systems to address the new market demands.

GS Housing Group Co., Ltd.

GS Housing Group Co., Ltd. is a residential and modular developer based in Seoul, South Korea, having been established in 1969. Sustainable design and high-quality prefabrication methods are a priority in the company, which advances its reach in urban housing and institutional projects.

Daewoo Engineering & Construction Co., Ltd.

Daewoo Engineering and Construction Co., Ltd. is a company based in Seoul, founded in 1973, that offers general construction services and modular buildings. The company concentrates on massive commercial, industrial, and home development projects in the South Korea modular construction market and employs new engineering and prefabrication techniques to enhance efficiency in construction.

Other key players in the market include POSCO A&C Co., Ltd., and PLANM Co., Ltd., among others.

Key Highlights of the South Korea Modular Construction Market Report

• Detailed past performance analysis and accurate predictions up to 2035, which allow planning the market accurately.
• Information about product innovations and new technologies that are influencing modular construction principles in residential, commercial, and industrial uses.
• Detailed competition landscape mapping of the major national and global modular construction participants, with an emphasis on strategic activities, partnerships, and positioning.
• Regional analysis to determine new hubs, growth areas, and regional demand trends in South Korea.
• Positive attitude to investments backed up with quantitative data, with emphasis on opportunities for developers, investors, and stakeholders.